What are the differences between ionic and covalent compounds?
Answer And Explanation:
An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms.
Question 5(Multiple Choice Worth 4 points)
(06.03 MC)
The graph shows the changes in the phase of ice when it is heated.
Phase Change of Ice
C-
Temperature
(C)
B
A-
solid
liquid
25
gas
50 75 100
Time (min)
Which of the following temperatures describes the value of B?
O0 °C, because it is the melting point of ice.
O 100 °C, because it is the boiling point of water.
O Greater than 0 °C, because A represents the temperature at which ice melts.
O Greater than 100 °C, because A represents the temperature at which water evaporates
The temperatures that describes the value of B is A, 0 °C, because it is the melting point of ice.
What does the graph represent?The graph shows that the temperature of the ice is increasing as it is heated. The point at which the line changes from solid to liquid is the melting point of ice. This is the temperature at which the ice changes its phase from solid to liquid. The melting point of ice is 0 °C.
The other options are incorrect. The boiling point of water is 100 °C, and the temperature at which water evaporates is also 100 °C. The temperature at point A is greater than 0 °C, but it is not greater than 100 °C.
Find out more on temperatures here: https://brainly.com/question/4735135
#SPJ1
What is the pOH if the [OH-]= 0.165 M? What is the pH of this basic solution? *Please round your answer(s) to the appropriate number of significant figures. Your answer can be in standard notation or i letter "e" in place of x10.* 1 N
Answer:
78
Explanation:
Answer:
The OH would be .7825 and the basic solution is a strong base.
Explanation:
What you would do is -log(0.165) in your calculator which would give you 0.7825160065 as an answer. Im not sure what the significant figure is so I will not be rounding to that, but that is your answer for the first part.
The second part: because your pOH is a .7825, this would be consiered a strong base in the pOH because it is closer to 1 which is your base.
one formulation of the alloy contains 68 atoms of potassium for every 32 atoms of sodium. what is the mass percentage of potassium in this alloy?
The mass percentage of potassium in the alloy is 68%. This is calculated by dividing the mass of 68 atoms of potassium by the total mass of 100 atoms in the alloy (68 atoms of potassium plus 32 atoms of sodium).
The mass percentage of an element in a mixture or alloy is a measure of how much of the total mass of the mixture is composed of that element. It is calculated by dividing the mass of that element by the total mass of the mixture. The mass percentage of an element will vary depending on the composition of the mixture, and it can be used to determine the relative amounts of different elements in a mixture.
Learn more about the mass percentage of potassium:
https://brainly.com/question/25380525
#SPJ4
The table below shows the time that the Moon rose and set over a few days.
Date Moon Rose Moon Set
March 2 4:59 a.m. 2:16 p.m.
March 3 5:38 a.m. 3:14 p.m.
March 4 6:11 a.m. 4:14 p.m.
Which of the following is the best prediction for the times that the Moon will rise and set on March 5?
A.
rise at 5:34 a.m., set at 3:18 p.m.
B.
rise at 7:42 a.m., set at 6:54 p.m.
C.
rise at 6:20 a.m., set at 4:16 p.m.
D.
rise at 6:40 a.m., set at 5:14 p.m.
This is dealing with science
C, best estimates for the times the Moon will rise and set on March 5: rise at 6:20 a.m., set at 4:16 p.m.
When does the moon rise?Observing the pattern from the previous days provides the best estimate for the times the Moon will rise and set on March 5. From March 2 to March 4, the Moon rose later and set later every day. Based on this trend, it is possible to forecast that the Moon will rise and set later on March 5 than it did on March 4.
Rises at 6:20 a.m., set at 4:16 p.m. - This option follows the pattern observed in the previous days, with the Moon rising later and setting later.
Therefore, the best possibility for the times the Moon will rise and set on March 5 is 6:20 a.m. and 4:16 p.m.
Find out more on Moon rise here: https://brainly.com/question/29775627
#SPJ1
Answer:
rise at 6:40 a.m., set at 5:14 p.m.
Explanation:
"The table shows that the Moon rose about 33 to 39 minutes later each day. The moon rose at 6:11 a.m. on March 4. So, the best prediction for March 5 is that the moon will rise at 6:40 a.m. The table shows that the moon set about 1 hour later each day. The moon set at 4:14 p.m on March 4. So, the best prediction for the next day is the moon will set at 5:14 p.m."
-Study Island
where protons are located in this carbon atom.
Answer:
In every atom, protons are located in the nucleus
Explanation:
You clicked the orbit of an electron in the photo. The electrons orbit the nucleus in the orbital empty space. Protons and neutrons compose the nucleus of every atom.
hope this helps :)
please crown me brainliest!!!
Which five systems help you change from a child to an adult?
Answer:
Infancy (neonate and up to one year of age)
Toddler ( one to five years of age)
Childhood (three to eleven years old) - early childhood is from three to eight years old, and middle childhood is from nine to eleven years old.
Adolescence or teenage (from 12 to 18 years old)
Adulthood.
Explanation:
Please give the brainliest.
____ are designed to make necessary adjustments to place a satellite into stable orbit.
there an A B C D thing?
Explanation:
890
Answer: thrusters
Explanation: got it right
I need help answering these
U has a total of six electrons. This corresponds to carbon (C). A is the second most common element in the atmosphere.
How to explain the informationThe second most common element in the atmosphere is oxygen (O). E is a noble gas.
Noble gases include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). Based on the given options, E could be xenon (Xe).
S is an alkali metal.
Alkali metals include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). Based on the given options, S could be sodium (Na).
O is a halogen.
Halogens include fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). Based on the given options, O could be bromine (Br).
O has an atomic number larger than V but smaller than W.
Based on the periodic table, the atomic number of oxygen (O) is 8, which is larger than the atomic number of vanadium (V) (23) and smaller than the atomic number of tungsten (W) (74).
The charge on an L ion is +2.
The charge of +2 indicates that L must lose two electrons to form the ion. Based on the given options, L could be calcium (Ca).
C has five electrons in its outer energy fever.
Carbon (C) has four valence electrons, not five. This contradicts the given statement, so we need to revisit the deductions.
Learn more about carbon on
https://brainly.com/question/19083306
#SPJ1
What is the maximum amount of sugar that will completely dissolved in 20 mL of water?
To get a saturated solution, we must dissolve 200 divide by 100 multiply by 20 grams of sugar in 20 l of water. The alternative to this statement is 40 grams of sugar.
Describe saturated solution and provide an example.The highest concentrations of an immediately following in the solvent is called a saturated solution, and any more solute will not breakdown in a liquid medium. Example: A sugar solution.
What causes a saturated solution to form?The sodium ions leave the exterior of the solids when a solvent containing the solute is added, becoming solvated by the solution and initially creating an imbalanced solution. The solution reaches saturation when the maximum amount of solute that can dissolve has done so.
To know more about saturated solution visit:
https://brainly.com/question/1851822
#SPJ4
what mass of aluminum will produce 3128 j of energy when heated 39 degrees celsius? the specific heat capacity of aluminum is 0.903 j/g oc.
The required mass of aluminium is 247 g.
The heat energy of a substance, like a metal component, increases whenever the temperature of that material rises. The quantity of heat energy needed by a specific substance (of unit mass) to cause a 1 °C shift in either direction is generally what we are interested in. The desired material's specific heat capacity may provide us with this knowledge, which makes it the most beneficial and strikingly preferred quantity in scientific studies.
Given:
Q = 3128 J (Heat energy produced by the given mass of aluminium)
T(i) = 25 °C (Initial temperature of aluminium)
T(f) = 39 °C (Final temperature of aluminium)
c = 0.903J/g °C (Specific heat capacity of aluminium)
m = required mass of aluminium
As a result, aluminum produces amount of heat energy:
Q =mcΔT
m = Q/cΔT = Q/c (T(f) - T(i))
= 3128 J/0.903 J/g°C X (39 °C - 25 °C)
= 247 g
Therefore, required mass of aluminium is 247 g.
Learn more about the specific heat capacity with the help of the given link:
https://brainly.com/question/28302909
#SPJ4
what orbitals are accountable to the law of octaves
The orbitals are accountable to the law of octaves are: 1s 2s 2p 2p 3s 3p 3d 4s 4p 4d 5s 5p 4f 5d 6s 6p 5f 6d 7s .
The law of octaves introduced by the English chemist named J.A.R Newlands. According to it if we arranged the chemical elements in the periodic table according to their atomic mass then those that have the similar physical and the chemical properties will occur after the each interval of the seven elements.
The last element that is known was the thorium with the atomic mass of 232. Newlands' law of octave was firstly applicable only up to the calcium with atomic mass of 40. Now there are more ninety elements known up to the thorium.
To learn more about law of octaves here
https://brainly.com/question/21672702
#SPJ4
a mixture of the compounds ferrocene and acetylferrocene was run through a silica column. one compound eluted with a nonpolar solvent, the other needed a polar solvent to elute. draw a tlc plate representing the mixture and label the two compounds.
Due to its lower polarity and fewer interactions with the adsorbent, ferrocene was the first substance to elute from the column.
Define column chromatography
When doing microscale research, column chromatography is one of the most helpful techniques for the separation and purification of both solids and liquids. The polarity and binding strengths that the constituents of a mixture have for column absorbents are utilised by chromatography. Adsorbents are stationary phase components with a large surface area that bind solute molecules.
Due to its lower polarity and preference for the less polar solvent, ferrocene went along the column more quickly. Based on the same theories, it travelled farther on the TLC plate because it is less polar and has a lesser affinity for the silica gel.
To learn more about column chromatography :
https://brainly.com/question/13542844
#SPJ4
Which of the following is a possible way to describe the SO3 component in the reaction below?
S8 (s) + 1202(g) → 8SO3(g)
8 molecules SO3
8 atoms SO3
80.07 g SO3
32 L SO3
The possible way to describe the \(SO_3\) component in the reaction would be 8 molecules or 8 atoms of \(SO_3\), Options 1 and 2.
State of matterEach component of a reaction has its state. Recall that matters are anything with weight and occupies space.
In the reaction: \(S_8 (s) + 12O_2(g) -- > 8SO_3(g)\)
Eight moles of sulfur react with 12 moles of oxygen molecules to produce 8 moles of sulfur (III) oxide. According to the reaction:
The state of sulfur is solid (s)The state of oxygen is gas (g)The state of sulfur (III) oxide is gas (g).The amount of gas can be described in terms of its number of molecules and its number of atoms. Thus, either 8 molecules or 8 atoms of sulfur (III) oxide can be used to describe the amount of \(SO_3\) produced in the reaction.
More on states of matters can be found here: https://brainly.com/question/29476563
#SPJ1
please answer these about Charles law
Answer:
1. V2.
2. 299K.
3. 451K
4. 0.25 x 451 = V2 x 299
Explanation:
1. The data obtained from the question include:
Initial volume (V1) = 0.25mL
Initial temperature (T1) = 26°C
Final temperature (T2) = 178°C
Final volume (V2) =.?
2. Conversion from celsius to Kelvin temperature.
T(K) = T (°C) + 273
Initial temperature (T1) = 26°C
Initial temperature (T1) = 26°C + 273 = 299K
3. Conversion from celsius to Kelvin temperature.
T(K) = T (°C) + 273
Final temperature (T2) = 178°C
Final temperature (T1) = 178°C + 273 = 451K
4. Initial volume (V1) = 0.25mL
Initial temperature (T1) = 299K
Final temperature (T2) = 451K
Final volume (V2) =.?
V1 x T2 = V2 x T1
0.25 x 451 = V2 x 299
Write electron configurations for each of the following elements. Use the symbol of the previous noble gas in brackets to represent the core electrons.
Ga
Express your answer in condensed form in order of increasing orbital energy as a string without blank space between orbitals. For example, [He]2s^22p^2 should be entered as [He]2s^22p^2.
Gallium:\([Ar] 3d^10 4s^2 4p^1\), Krypton: \([Ar] 3d^10 4s^2 4p^6\), Bromine: \([Kr] 4d^10 5s^2 5p^5\), In these electron configurations, the noble gas symbols in brackets represent the core electrons, while the remaining orbitals denote the valence electrons.
To determine the electron configurations for the given elements, we need to identify the previous noble gas for each one and then add the valence electrons. The previous noble gas represents the core electrons, which are the completely filled inner electron shells. Let's calculate the electron configurations for each element:
Gallium (Ga):
The previous noble gas is argon (Ar), with the electron configuration [Ar]. Gallium has an atomic number of 31, indicating that it has 31 electrons. Therefore, the electron configuration of gallium is:
\([Ar] 3d^10 4s^2 4p^1\)
Krypton (Kr):
The previous noble gas is argon (Ar), with the electron configuration [Ar]. Krypton has an atomic number of 36, so its electron configuration is:
\([Ar] 3d^10 4s^2 4p^6\)
Bromine (Br):
The previous noble gas is krypton (Kr), with the electron configuration [Kr]. Bromine has an atomic number of 35, so its electron configuration is:
\([Kr] 4d^10 5s^2 5p^5\)
Learn more about electron configurations
https://brainly.com/question/26084288
#SPJ11
Which one of the following statements concerning stable nucleiis true? a.Stable nuclei have atomic numbersgreater than 83. b.Stable nuclei generally have moreneutrons than protons. c.Stable nuclei generally have an oddnumber of neutrons. d.Stable nuclei generally have oddatomic numbers. e.Stable nuclei have nucleon numbers less than 83.
The statement of e. Stable nuclei have nucleon numbers less than 83 is concerning stable nuclei is true. Stable nuclei are those that do not undergo spontaneous radioactive decay.
In general, stable nuclei have a balanced number of protons and neutrons, resulting in a stable nuclear configuration. However, there is no strict rule that stable nuclei must have an equal number of protons and neutrons or that they must have odd atomic numbers or odd numbers of neutrons.
The nucleon number, also known as the mass number, represents the total number of protons and neutrons in the nucleus. Stable nuclei can have various combinations of protons and neutrons, but for nucleon numbers greater than 83, the likelihood of stability decreases, leading to a greater tendency for radioactive decay.
Learn more about stable nuclei: https://brainly.com/question/30304562
#SPJ11
help ASAPP plsplsplsplspls tyyyyy
Answer:
0.333333 cal/g-°C
Explanation:
Energy = mass x specific heat capacity x temperature change.
(E = mcΔT)
Energy = 100.0 cal
specific heat capacity c= unknown
mass m = 4.0 g
temperature change ΔT = 100 - 25 =75°
100 = 4c(75)
c = 0.333333 cal/g-°C
how do we analyze the world around a daily basis
To analyze the world around us on a daily basis, we must employ the use of technology that allow the collection of huge amounts of data as well as their analysis.
To evaluate the environment around us on a daily basis, we must preserve a record of facts about the occurrences we want to Analyze. As a result, we can follow any changes and make educated decisions about them.
What are some instances of data that can be collected about the world?One might choose to monitor the pace of change in forest size on a global basis. This is now possible thanks to satellites and other research organizations. One might also choose to monitor health data on a worldwide basis.
Other considerations include:
Human Development Index for PopulationFactors of Socio-EconomySocio-political variables, for example.It should be noted that the analysis of world data emphasizes world systems, not national states, it is important to take into account historical processes that take place over a long period of time, and the integration of a traditionally diverse body of knowledge, such as history, political science, economics. and sociology in one analytical framework.
Learn more about world analysis:
https://brainly.com/question/3522270
#SPJ1
Classify each of the following as an element, a compound, or a mixture:
(a) copper
(b) water
(c) nitrogen
(d) sulfur
(e) air
(f) sucrose
(g) a substance composed of molecules each of which contains two iodine atoms
(h) gasoline
A sulfur atom and a sulfur molecule are not identical. What is the difference?
Indicate the SI base units or derived units that are appropriate for the following measurements:
(a) the length of a marathon race (26 miles 385 yards)
(b) the mass of an automobile
(c) the volume of a swimming pool
(d) the speed of an airplane
(e) the density of gold
(f) the area of a football field
(g) the maximum temperature at the South Pole on April 1, 1913
A large piece of jewelry has a mass of 132.6 g. A graduated cylinder initially contains 48.6 mL water. When the jewelry is submerged in the graduated cylinder, the total volume increases to 61.2 mL.
(a) Determine the density of this piece of jewelry.
(b) Assuming that the jewelry is made from only one substance, what substance is it likely to be? Explain.
(a) Copper is an element. Elements are pure substances that cannot be broken down into simpler substances by chemical means. is a type of metal that consists of only one type of atom, which is copper.
(b) Water is a compound. Compounds are substances made up of two or more elements that are chemically combined. Water is composed of two hydrogen atoms and one oxygen atom, chemically bonded together.
(c) Nitrogen is an element. It is a colorless and odorless gas that makes up about 78% of Earth's atmosphere. Nitrogen consists of only one type of atom, which is nitrogen.
(d) Sulfur is an element. It is a yellow, brittle solid that can be found in nature. Sulfur consists of only one type of atom, which is sulfur.
(e) Air is a mixture. A mixture is a combination of two or more substances that are not chemically combined. Air is composed of various gases, such as nitrogen, oxygen, carbon dioxide, and trace amounts of other gases.
(f) Sucrose is a compound. It is a type of sugar commonly found in plants. Sucrose is made up of carbon, hydrogen, and oxygen atoms, chemically bonded together.
(g) A substance composed of molecules each of which contains two iodine atoms is a compound. It is specifically a diatomic molecule. Diatomic molecules are molecules composed of two atoms of the same or different elements. In this case, the molecule contains two iodine atoms bonded together.
(h) Gasoline is a mixture. It is a complex mixture of hydrocarbons and additives that is used as fuel for internal combustion engines.
The difference between a sulfur atom and a sulfur molecule is that an atom is the smallest unit of an element that retains its chemical properties, while a molecule is a combination of two or more atoms held together by chemical bonds. In the case of sulfur, a sulfur atom refers to a single sulfur atom, while a sulfur molecule refers to a combination of two sulfur atoms bonded together.
Now, let's consider the appropriate SI base units or derived units for the following measurements:
(a) The length of a marathon race can be measured in meters (m), which is the SI base unit for length.
(b) The mass of an automobile can be measured in kilograms (kg), which is the SI base unit for mass.
(c) The volume of a swimming pool can be measured in cubic meters (m^3), which is the SI derived unit for volume.
(d) The speed of an airplane can be measured in meters per second (m/s), which is the SI derived unit for speed.
(e) The density of gold can be measured in kilograms per cubic meter (kg/m^3), which is the SI derived unit for density.
(f) The area of a football field can be measured in square meters (m^2), which is the SI derived unit for area.
(g) The maximum temperature at the South Pole on April 1, 1913 can be measured in degrees Celsius (°C), which is the SI derived unit for temperature.
Finally, let's determine the density of the piece of jewelry and identify the likely substance it is made from:
(a) Density is calculated by dividing the mass of an object by its volume. In this case, the mass of the jewelry is 132.6 g and the volume is 61.2 mL - 48.6 mL = 12.6 mL. We need to convert mL to cm^3 since 1 mL = 1 cm^3. Therefore, the volume is 12.6 cm^3. Now we can calculate the density by dividing the mass by the volume: density = mass/volume = 132.6 g/12.6 cm^3 = 10.5 g/cm^3.
(b) To determine the likely substance the jewelry is made from, we can compare its density to the densities of known substances. Based on the calculated density of 10.5 g/cm^3, it is likely that the jewelry is made from a substance such as gold, platinum, or lead. These substances have densities within the range of the calculated density. However, further tests or analysis would be needed to determine the exact substance.
To know more about oxygen, visit:
https://brainly.com/question/33311650
#SPJ11
How many kinds of molecules are involved in the following equation? 2C2H6 + 702 → 4CO2 + 6H2O
There are five kinds of molecules involved in the given equation.
In the given equation, we have two molecules of ethane (C\(_{2}\)H\(_{6}\)) reacting with seven molecules of oxygen (O\(_{2}\)). This means we have two different kinds of molecules on the reactant side: ethane (C\(_{2}\)H6) and oxygen (O\(_{2}\)).
On the product side of the equation, we have four molecules of carbon dioxide (CO\(_{2}\)) and six molecules of water (H\(_{2}\)O). This gives us two additional kinds of molecules on the product side: carbon dioxide (CO\(_{2}\)) and water (H\(_{2}\)O).
Therefore, in total, there are five kinds of molecules involved in the equation: ethane (C\(_{2}\)H\(_{6}\)), oxygen (O\(_{2}\)), carbon dioxide (CO\(_{2}\)), water (H\(_{2}\)O).
You can learn more about molecules at
https://brainly.com/question/475709
#SPJ11
5. The number of moles of molecules in a 12.0-gram sample of Cl2 is
A) 12.0 moles
B) 12.0 x 35.5 moles
C) 12.0/71.0 mole
D) 12.0/35.5 mole
Answer:
\(\frac{12}{71}\)mole
Explanation:
Given parameters:
Mass = 12g
Molecule = Cl₂
Unknown:
Number of moles of molecules = ?
Solution:
To solve this problem, we use the expression below:
Number of moles = \(\frac{mass}{molar mass}\)
molar mass of Cl₂ = 2 (35.5) = 71g/mol
Number of moles = \(\frac{12}{71}\)mole
Considering the definition of molar mass, the number of moles of molecules in a 12 grams sample of Cl₂ is \(\frac{12 g}{71 \frac{g}{mole} }\)= 0.169 moles.
Molar mass is the mass of one mole of a substance, which can be an element or a compound.
In other words, molar mass is the amount of mass that a substance contains in one mole.
Therefore, knowing the molar mass, the number of moles in a container can be calculated using the expression:
\(number of moles=\frac{mass}{molar mass}\)
In this case, you have 12 grams sample of Cl₂, whose molar mass is 71 \(\frac{g}{mole}\).
So, the number of moles can be calculated as:
\(number of moles=\frac{12 g}{71 \frac{g}{mole} }\)
Solving:
number of moles= 0.169 moles
Finally, the number of moles of molecules in a 12 grams sample of Cl₂ is \(\frac{12 g}{71 \frac{g}{mole} }\)= 0.169 moles.
Learn more about molar mass and number of moles:
https://brainly.com/question/6978740?referrer=searchResultshttps://brainly.com/question/22168272?referrer=searchResultsplease help. I was hoping someone could explain it , cause I have no idea what I'm doing PLEASE HELP. ASAP!!!!
The additional information that is required to obtain the enthalpy of neutralization is the density of the solution.
What is the enthalpy?We know that the enthalpy of neutralization is defined as the heat that is evolved when an acid is neutralized by a base under standard conditions. We can be able to obtain the enthalpy of the neutralization of the acid and the base by performance of some simple chemical calculations.
To carry out this calculations we need the all of the pieces of information that have been listed in the question such as the masses of the solution, the temperature of the solution in the initial and final states and so on.
Learn more about enthalpy:https://brainly.com/question/7827769
#SPJ1
A reaction has a standard free-energy change of -13.50 KJ mol-1 (-3.227 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 degree Celsius
________________?
The equilibrium constant for the reaction at 25 degrees Celsius is approximately 236.8. The value of the equilibrium constant depends on the temperature at which the reaction is taking place.
The relationship between the standard free energy change (ΔG°), the equilibrium constant (K), and the temperature (T) is given by the following equation:
ΔG° = -RTlnK
where R is the gas constant (8.314 J/(mol K) or 1.987 cal/(mol K)) and ln is the natural logarithm.
First, we need to convert the standard free energy change from kilojoules per mole to joules per mole:
ΔG° = -13.50 kJ/mol = -13,500 J/mol
Next, we can substitute the values into the equation and solve for K:
-ΔG°/RT = lnK
-K = e^(-ΔG°/RT)
-K = e^(-(−13,500 J/mol) / (8.314 J/(mol K) × 298 K))
-K = e⁵.⁴⁶
-K = 236.8
Learn more about equilibrium here: brainly.com/question/18849238
#SPJ4
Using the periodic table, explain which pair of the following gases have the most similar properties and why. Nitrogen (N), Fluorine (F), Neon (Ne), Krypton (Kr), and Oxygen (O).
Elements that belong to the same group of the periodic table (column) have similar properties. This is because elements of the same group have the same amount of valence electrons. This means that chemically and especially in a chemical reaction (or lack thereof), they will behave similarly.
Neon and Krypton are the only two gases in the list given that belong to the same group of the periodic table (Group 18 - Noble Gases) and as such have similar properties.
Similar Properties of Neon and Krypton:
- Both have 8 valence electrons - They both are very stable and almost unreactive- Both are gases at RTP-Both are odorless, colorless, and tasteless until interaction with an electrical charge.
Please help with whatever you can
Electrolytes are substances that, when dissolved in water, can conduct electricity. This is because they break down into ions, which are charged particles. The most common electrolytes are salts, acids, and bases.
What are electrolytes about?When a substance dissolves in water it forms an aqueous solution. Depending on whether or not an aqueous compound conducts electricity determines whether it can be classified as a(n) electrolyte or a non-electrolyte. An electrolyte is a substance whose aqueous solution can conduct electricity because when it dissolves in water it also dissociates into positive cations and negative anions.
A substance whose aqueous solution does not conduct electricity is called a non-electrolyte because when it dissolves in water it does not dissociate into ions. The process by which water molecules split chemical compounds into ions is called dissociation, which is a chemical change that breaks the chemical bonds holding a compound together when dissolved in water. Therefore, in order for a solution to conduct electricity, it must contain ions.
For example, table salt is classified as an electrolyte because if we were able to examine an aqueous solution of sodium chloride, NaCl(aq), at the molecular level, we would see individual sodium ions, Na+ and chloride ions, Cl-, separated, dispersed and hydrated, which means surrounded by water molecules.
On the other hand, if we were able to examine an aqueous solution of table sugar at the molecular level, we would see the individual sugar molecules hydrated, but not dissociated because sugar does not release any ions into solution. Therefore, table sugar is classified as a(n) non-electrolyte.
A compound that breaks entirely into ions as it dissolves in water is classified as a strong electrolyte but a compound that breaks partially into ions as it dissolves in water is classified as a weak electrolyte. For this reason, at the same molar concentration a strong electrolyte is a much better conductor than a weak electrolyte.
Find out more on electrolytes here: https://brainly.com/question/17089766
#SPJ1
A 0.5998 g sample of a new compound has been analyzed and found to contain the following masses of elements: carbon, 0.1565 g; hydrogen, 0.02627 g; oxygen, 0.4170 g. Calculate the empirical formula of the compound.
The empirical formula of the compound is CH2O.
To find the empirical formula of the compound, we need to determine the ratios of the atoms in the compound. To do this, we need to find the number of moles of each element present in the compound.
The molar mass of carbon is 12.01 g/mol, the molar mass of hydrogen is 1.008 g/mol, and the molar mass of oxygen is 16.00 g/mol. The number of moles of carbon in the sample is:0.1565 g × 1 mol/12.01 g ≈ 0.0130 mol. The number of moles of hydrogen in the sample is:0.02627 g × 1 mol/1.008 g ≈ 0.0261 molThe number of moles of oxygen in the sample is:
0.4170 g × 1 mol/16.00 g ≈ 0.0261 mol
Now that we know the number of moles of each element, we can determine the simplest whole number ratio of the elements in the compound. We can do this by dividing each number of moles by the smallest number of moles. In this case, the smallest number of moles is 0.0130 mol.
We get:
Carbon: 0.0130 mol ÷ 0.0130 mol = 1
Hydrogen: 0.0261 mol ÷ 0.0130 mol = 2
Oxygen: 0.0261 mol ÷ 0.0130 mol = 2
for more such questions on empirical formula
https://brainly.com/question/16253224
#SPJ11
how many different alkenes result when 3-bromo-3-methylheptane is treated with a strong base? select answer from the options below 6 3 5 2 4
The number of alkenes formed depends on the position of the bromine and the methyl group on the carbon chain.
What are alkenes?An alkene is described as a hydrocarbon containing a carbon–carbon double bond and often used as synonym of olefin, that is, any hydrocarbon containing one or more double bonds.
When 3-bromo-3-methylheptane is treated with a strong base, an elimination reaction occurs, resulting in the formation of alkenes.
The elimination reaction happens by removing a proton from a beta-carbon (i.e., a carbon adjacent to the carbon bearing the bromine atom) and the bromine atom to form an alkene.
Learn more about alkenes at: https://brainly.com/question/24270289
#SPJ1
When coal is burned completely into carbon dioxide and other gases, the total amount of matter of the gases _____.
Answer:
must be equal to the amount of matter of the coal.
Explanation:
According to the law of conservation of matter, which states that matter can neither be created nor destroyed no matter how transformed it is. This means that the total amount of the reactants must equate the total amount of products.
In this question involving a reaction that causes a change of state from solid (coal) to gaseous (CO2 and other gases), in order to obey the law of conservation of mass, the total amount of the matter of the gases (products) must be equal to that amount of matter of the coal (reactants).
it is on SWRO plant with a capacity of 50000m3/day the tds of the feed is 41690ppm implying a chloride ion level of around 23000ppm the temperature of the feed is around 18°C in March and 27°C in September the reject has a tds of 64500ppm . the pressure is 70 bar, that plant started to produce water in June 2003 and corrosion problem appeared already few months of service, two type of corrosion could be established, one being crevice corrosion in 11/2" high pressure connector underneath victauling coupling example the same type of problem that have been corrosion in 316L and 317L high pressure piping seven out of 700 such connector were reported to have suffered this type crevice corrosion after 4 months only, provide the remedy to end the problem
To address the crevice corrosion issue in the high-pressure connectors and piping of the SWRO plant, several remedies can be considered, A SWRO (Sea Water Reverse Osmosis) plant is a water desalination facility that uses reverse osmosis technology to treat seawater or brackish water and produce freshwater
Material Selection: Evaluate the material compatibility with the operating conditions, especially the chloride ion concentration and temperature. Consider using corrosion-resistant alloys such as duplex stainless steel (e.g., 2205) or super duplex stainless steel (e.g., 2507) that have better resistance to chloride-induced corrosion compared to 316L or 317L stainless steel.
Surface Treatment: Apply appropriate surface treatments to enhance corrosion resistance. Passivation or pickling can remove surface contaminants and create a protective oxide layer on the metal surface, reducing the susceptibility to corrosion.
Design Modifications: Evaluate the design of the connectors and piping to minimize crevices and stagnant areas where corrosion can occur. Smooth transitions, avoiding sharp angles or crevices, can help promote better fluid flow and prevent the accumulation of corrosive substances.
Cathodic Protection: Implement cathodic protection methods, such as impressed current or sacrificial anodes, to protect the connectors and piping from corrosion. This technique involves introducing a more easily corroded metal (anode) to the system, which sacrifices itself to protect the connected metal (cathode) from corrosion.
Monitoring and Maintenance: Regularly monitor the corrosion levels and condition of the connectors and piping. Implement a maintenance program that includes periodic inspections, cleaning, and repairs, if necessary, to prevent corrosion from progressing.
It is important to consult with corrosion experts and engineers who specialize in SWRO plant operations to assess the specific conditions, perform material testing, and provide tailored solutions to mitigate the crevice corrosion problem effectively.
To know more about SWRO (Sea Water Reverse Osmosis), click here, https://brainly.com/question/31556553
#SPJ11