what is the type of intermolecular force between the molecules of BeCl2
a) Hydrogen bonding
b) Dispersion forces
c) Dipole-dipole
d) Ion-ion
Answers
The type of intermolecular force between the molecules of BeCl2 is dispersion forces. Dispersion force is the force that binds two molecules together due to the interaction of their electrons. Dispersion forces result from the temporary dipoles that are created when the electrons in a molecule accumulate on one side of the nucleus or the other.
Beryllium chloride (BeCl2) is a colorless or yellowish, non-flammable, non-corrosive gas with a sharp odor. Beryllium and chlorine are combined in BeCl2 to create this compound. BeCl2 is a linear molecule with no net electrical polarity, making it nonpolar.
The types of intermolecular forces are as follows: London Dispersion Forces: This occurs between two non-polar molecules that have a temporary dipole moment. Dipole-Dipole Forces:
This occurs between two polar molecules.Hydrogen Bonding: This occurs between a hydrogen atom covalently bonded to a strongly electronegative atom, such as F, N, or O, and another strongly electronegative atom in a different molecule.Ion-Ion Forces: This occurs between two charged ions, such as Na+ and Cl-.
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Related Questions
1. What class of drugs are being investigated in this study, and how do they get into our waterways? 2. What is a C-start and why is it important for larval fish survival? 3. What hypotheses are being tested in this investigation? 4. Briefly describe what the researchers found when they exposed larval fathead minnows to levels of antidepressants found in our waterways.
Answers
The effects of exposure were more pronounced in fish that had been raised in a less stressful environment, suggesting that environmental conditions can influence the impact of exposure to antidepressants.
1. The class of drugs being investigated in this study is antidepressants. They enter our waterways through excretion by individuals taking the medication, and disposal of unused medication into toilets or sinks that are connected to wastewater treatment plants.
2. C-start is an evasive maneuver that young fish use when they perceive a predator. This is important for larval fish survival because it helps them to avoid being eaten by predators.
3. In this investigation, researchers are testing two hypotheses. The first is that exposure to low levels of antidepressants can affect larval fathead minnows' behavior, and the second is that the effects of exposure will be more pronounced in fish that have been raised in a less stressful environment.
4. The researchers found that exposure to antidepressants at levels found in waterways can have a significant impact on the behavior of larval fathead minnows. Specifically, they found that the fish exposed to antidepressants were less likely to respond to the presence of predators, which could increase their risk of being eaten.
They also found that the effects of exposure were more pronounced in fish that had been raised in a less stressful environment, suggesting that environmental conditions can influence the impact of exposure to antidepressants.
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Piperine, a major component of black pepper, is shown below. To what class of carboxylic acid derivative does piperine belong?
student submitted image, transcription available below
ester
acyl halide
acid anhydride
amide
nitrile
Answers
Based on the structure of piperine, it belongs to the class of carboxylic acid derivatives known as amides.
The structure of piperine contains a carbonyl group (C=O) attached to a nitrogen atom, which is characteristic of amides. In piperine, the carbonyl group is part of the amide functional group formed between the carboxylic acid moiety and the amine moiety.
Esters are formed by the reaction between a carboxylic acid and an alcohol, which is not the case in piperine. Acyl halides are carboxylic acid derivatives where the carbonyl group is bonded to a halogen atom (e.g., chlorine or bromine), which is also not present in piperine.
Acid anhydrides are formed by the dehydration of two carboxylic acids, and again, this is not the case in piperine. Lastly, nitriles contain a cyano group (C≡N), which is not present in piperine's structure.
Therefore, based on the given options, piperine belongs to the class of carboxylic acid derivatives known as amides.
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what are some of the alternative, unconventional resources for oil and natural gas?
Answers
There are several unconventional resources for oil and natural gas, including shale gas, tight gas, coalbed methane, and oil sands.
These resources are unconventional because they require specialized extraction techniques, such as hydraulic fracturing and horizontal drilling. Shale gas, for example, is extracted from shale rock formations by injecting a mixture of water, sand, and chemicals at high pressure to release the gas trapped within the rock. Coalbed methane is extracted from coal seams by pumping out water and lowering the pressure, allowing the gas to be released.
Oil sands, on the other hand, are a mixture of sand, water, and bitumen (a heavy crude oil) that require surface mining or in-situ methods to extract. While unconventional resources can provide a significant source of oil and gas, their extraction can be controversial due to environmental concerns and potential impacts on local communities.
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imagine you are frosting a cake apply pascal's law to using the bag of frosting what would happen when you squeeze the bag
Answers
Which of the following BEST explains why fossil fuel supplies are limited?'
Fossil fuel formed over million of years, and they are being used more quickly than
they can be replaced
Only small amounts of fossil fuel ever formed and early humans used most of the
available supply
Fossil fuels exists in every large quantities, but they are difficult for scientists to
locate
People are not allowed to use large amounts of fossil fuels.
Answers
chatgptwhich of these actions will cause more sugar to dissolve in a saturated sugar water solution? i. add more sugar while stirring ii. add more sugar and heat the solution iii. grind the sugar to a powder, then add while stirring
Answers
More amount of sugar can be dissolved in a saturated sugar water solution by adding more sugar and heating the solution.
Saturated solution is defined as a solution in which water ,or any solvent, had dissolved as much of any substance as it can. Generally, a saturated solution is a solution in which there is so much solute that if there was any more, it would not dissolve.
In any saturated solution the quantity of solute dissolved in the solvent is in the maximum quantity as possible, keeping the existing temperature and pressure constant. All of the dissolved and undissolved solutes remains at equilibrium, leaving no possibility of dissolving any more solute at this temperature and pressure.
But when heat is applied sugar gets easily dissolved in a saturated solution.
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Answer: the answer is b
Explanation:
i got it right
What is the volume of the water plus the rock
Answers
One way to measure the volume of an irregular object (a rock in your case) is to completely submerge it in water and measure the change in height of the water level. This change in water level (let's say from 50ml to 65ml) indicates that the volume of the stone is 15ml.
What are the ways to measure the volume of the water plus the rock ?The volume of the stone depends on the size of the stone. Since rocks are irregularly shaped bodies, their volume is easily determined by the displacement of water. When an object is placed in water, the amount of water displaced by the object is equal to the volume of the object. Density is an important property of rocks as it helps identify the type of rock and its geological structure.
To calculate the density of a rock, we need to divide the rock's mass by its volume. The latter can be determined by placing the rock in a graduated cylinder filled with water.
Calculation ;Add 30ml of water to the graduated cylinder. 30 ml is the starting water volume. Carefully put the stone into the water. You will see the water level in the graduated cylinder rise. Suppose that the water level rises to 50 ml when a stone is added. 50 ml is the final volume of water.
To find the volume of the stone, subtract the initial water volume from the final water volume: 50ml - 30ml = 20ml. So the volume of the rock will be 20 ml or 20 cm³.
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Using data in Burrows et al book, Addition of thionyl chloride to hexaquocobalt(II) chloride is an endothermic but spontaneous chemical reaction to give
(2O)62
() + 62
() → 2
() + 12() + 62()
using a qualitative description explain the reaction being spontaneous
Answers
30 words: The addition of thionyl chloride to hexaquocobalt(II) chloride is spontaneous because it occurs without external intervention and leads to products with lower potential energy.
100 words: The spontaneous nature of a chemical reaction is determined by the change in Gibbs free energy, ΔG. If ΔG is negative, the reaction is spontaneous and will occur without external intervention. In the case of the addition of thionyl chloride to hexaquocobalt(II) chloride, the formation of products with lower potential energy drives the reaction to proceed spontaneously.
The reaction involves the breaking of weak bonds and the formation of stronger ones, which results in a decrease in the potential energy of the system. This decrease in potential energy leads to a negative ΔG, making the reaction spontaneous. In summary, the decrease in potential energy and the resulting negative ΔG are the driving forces for the spontaneous nature of the reaction.
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how many ml of a 0.121 m aqueous solution of iron(iii) acetate, , must be taken to obtain 6.79 grams of the salt?
Answers
242 ml of a 0.121 m aqueous solution of iron(iii) acetate, must be taken to obtain 6.79 grams of the salt
Determining the quantity of Iron acetate solution:
To determine how many ml of a 0.121 M aqueous solution of iron(III) acetate are needed to obtain 6.79 grams of the salt, follow these steps:
1. Calculate the molar mass of iron(III) acetate: Fe(C2H3O2)3
Fe: 55.85 g/mol
C2H3O2: (2 * 12.01) + (3 * 1.01) + (2 * 16.00) = 59.05 g/mol
Molar mass of Fe(C2H3O2)3: 55.85 + (3 * 59.05) = 232.00 g/mol
2. Calculate the number of moles of iron(III) acetate in 6.79 grams:
moles = mass / molar mass = 6.79 g / 232.00 g/mol ≈ 0.0293 mol
3. Calculate the volume of the 0.121 M aqueous solution needed:
Volume = moles/molarity = 0.0293 mol / 0.121 M ≈ 0.242 ml
Therefore, you need approximately 242 ml of a 0.121 M aqueous solution of iron(III) acetate to obtain 6.79 grams of the salt.
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Question 11
Which formula represents a hydrocarbon?
C₂H6
C₂H5OH
C₂H5Cl
C₂H6O
Answers
Answer:
C₂H6
Explanation:
Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). Option A
A hydrocarbon is a compound that consists of only carbon and hydrogen atoms. It is important to identify the formula that represents a hydrocarbon among the given options:
A) C₂H6: This formula represents ethane, which is a hydrocarbon. Ethane consists of two carbon atoms bonded together with single bonds and six hydrogen atoms.
B) C₂H5OH: This formula represents ethanol, which is not a hydrocarbon. Ethanol contains a hydroxyl group (-OH), indicating the presence of oxygen in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.
C) C₂H5Cl: This formula represents ethyl chloride, which is not a hydrocarbon. Ethyl chloride contains a chlorine atom (Cl) in addition to carbon and hydrogen atoms. It is a haloalkane, not a hydrocarbon.
D) C₂H6O: This formula represents ethanol, which, as mentioned before, is not a hydrocarbon. Ethanol contains an oxygen atom (O) in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.
Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). It consists only of carbon and hydrogen atoms, making it a suitable representation of a hydrocarbon.
In summary, the formula C₂H6 (option A) represents a hydrocarbon, while the other options contain additional elements (oxygen or chlorine) that make them non-hydrocarbon compounds. Option A
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Hello, I would like to check and see if the number of significant figures is correct with each calculation. Let me know if you have any questions.
Answers
Explanation:
For one thing, Net volume = Final volume - Initial volume
The result of this calculation follows the rule of subtraction.
(For addition and subtraction problems, the answer should be rounded to the same number of decimal places as the measurement with the least number of decimal places.)
So, in case in point is:
Trial 2
Initial = 1.2 mL
Final = 2.45 mL
Net = 2.45 - 1.2 = 1.25 = 1.3 (follow the rule from above)
Please, take a look and apply the rule mentioned.
------
The average volume per drop is well done (3 significant figures)
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An aqueous solution that contains exactly 0.0074mole of HCI per 0.05L of solution. What is the concentration?
Answers
The concentration of the HCl solution is 0.148 M.
The concentration of a solution is typically measured in moles per liter (M). We can calculate the concentration of HCl in the given solution as follows:
Concentration (M) = moles of solute/volume of solution (in liters)
We are given that the solution contains 0.0074 moles of HCl in 0.05 liters of solution. Plugging these values into the equation above, we get:
Concentration (M) = 0.0074 mol / 0.05 L
Concentration (M) = 0.148 M
The concentration of the HCl solution is 0.148 M.
A mole is a measurement used to quantify a substance's quantity. A material is said to have one mole if there are the same number of its constituent parts (such as atoms, molecules, or ions) in it as there are 12 grams of carbon-12.
Because they help us connect a substance's bulk to the number of particles it contains, moles are crucial in the study of chemistry. The mass in grams of one mole of a material, for instance, is known as its molar mass.
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Aluminum wiring can be a fire hazard because it can oxidize, or combine with oxygen. How many grams of aluminum are needed to react with 3.00 moles of oxygen?
Answers
Aluminum wiring can be a fire hazard because it can oxidize, or combine with oxygen. Therefore, 4moles of aluminium react with 3 moles of oxygen.
What is aluminium?Aluminum (Al), also written aluminium, is a chemical element that is a light silvery white metal in Periodic Group 13 (IIIa, or the boron group). Aluminum is the most common nonferrous metal and the most prevalent metallic element in the Earth's crust.
Aluminum is never found in its metallic form in nature due to its chemical activity, but its compounds are found to varying degrees in practically all minerals, flora, and animals.
4Al + 3O\(_2\) \(\rightarrow\) 2Al\(_2\)O\(_3\)
mole of oxygen =3 moles
the mole ratio between aluminium and oxygen is 4:3.
moles of aluminium = 4moles
Therefore, 4moles of aluminium react with 3 moles of oxygen.
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Observe: Look at the red lithium atom and the blue oxygen atom. Recall that most atoms are stable when their outermost ring has eight electrons. (Some atoms, such as lithium and beryllium, are stable when their outermost ring has two electrons.)
How many electrons will the lithium atom give up to become stable?
1. eight
2. seven
3. two
4. one
Answers
Answer:
4. one
Explanation:
if a reaction vessel initially contains an n2o4 concentration of 0.0550 m at 500 k , what are the equilibrium concentrations of n2o4 and no2 at 500 k ? g
Answers
The relationship between the product creation and the utilised reactant is provided by the equilibrium constant. Dinitrogen tetroxide is present in concentrations of 0.003 M and 0.054 M, respectively, of nitrogen dioxide.
The equilibrium constant is what?
The rate at which the reactant in a chemical reaction transforms into the products is expressed as an equilibrium constant.
The response can be demonstrated by,
The concentrations are estimated as follows using the ICE table that is linked below:
Continuing to solve
Consequently, nitrogen dioxide is present in concentrations of 0.054 M and 0.003 M, respectively.
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IWhich of the following solutions would be most likely to have the highest water concentration?
Multiple Choice hypertonic solution isotonic solution hypotonic solution water concentration and tonicity of a solution cannot be compared
Answers
"Hypotonic solution," refers to a solution with the highest water concentration due to its lower solute concentration compared to the other options, leading to water influx into cells.
A hypotonic solution would be most likely to have the highest water concentration. In a hypotonic solution, the solute concentration is lower than that inside the cell or compared to another solution. As a result, water tends to move into the cell or the solution to equalize the concentration.
When a cell is placed in a hypotonic solution, water molecules will move into the cell through the process of osmosis. This influx of water increases the water concentration inside the cell, leading to cell swelling or even bursting in extreme cases.
Compared to hypertonic and isotonic solutions, a hypotonic solution has a lower solute concentration, allowing for a higher concentration of water molecules. This results in a higher water concentration in the solution. It's important to note that the concept of tonicity is related to the relative solute concentrations between two solutions and their effect on cell osmosis. In this case, a hypotonic solution is characterized by a higher water concentration compared to the other options.
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Neutrons have neither charge nor mass.
TRUE
FALSE
Answers
Answer:
False.
Explanation:
Neutrons are neutral(no charge) but they contain mass(1.675×10⁻²⁷ kg)
Hope, this helps you.
(02.07 MC
As you move down group one of the periodic table, what happens to the atomic radil? (4 points)
Answers
Answer:
It increases
Explanation:
The atomic radii increases because you are adding more shells/electrons
9 Cardiac disease is a major problem in the United States."
A It affects voluntary muscles
phony
B
It affects bones
C It affects tendons and joints
D
It affects the heart
Answers
Answer:
D It affects the heart
Explanation:
Identify the name of the carboxylic acid derived from an alkane with one carbon.Select the correct answer below:methanoic acid
monocarboxylic acid
monoalkane acid
ethanoic acid
Answers
The carboxylic acid derived from an alkane with one carbon is called methanoic acid. Option A is correct.
Carboxylic acids are organic compounds containing a carboxyl group (-COOH) attached to a carbon atom. This functional group consists of a carbonyl group (C=O) and a hydroxyl group (-OH) attached to the same carbon atom. The general formula for carboxylic acids is R-COOH, where R is an alkyl or aryl group.
Carboxylic acids are commonly found in nature and have many important biological functions. They are essential building blocks for the synthesis of amino acids, which are the building blocks of proteins. Carboxylic acids are also involved in many metabolic pathways and are important in the metabolism of fats.
Carboxylic acids are used in many applications, including as preservatives in food and as intermediates in the synthesis of pharmaceuticals, polymers, and other organic compounds.
Hence, A. is the correct option.
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--The given question is incomplete, the complete question is
"Identify the name of the carboxylic acid derived from an alkane with one carbon. Select the correct answer below: A) methanoic acid B) monocarboxylic acid C) monoalkane acid D) ethanoic acid."--
Convert 5 micrometers to meters.
Answers
Answer:
5e-6
Explanation:
Answer:
0.005
Explanation:
The formula for this equation is dividing the length value by 1000 which will give you your answer which in the case I gave you the answer to your question your welcome. : )
What are the coefficients when this reaction is balanced?
__Pb + __H3PO4 → __H2 + __Pb3(PO4)2
Answers
Answer:
3Pb + 2H₃PO₄ → 3H₂ + 1Pb₃(PO₄)₂
Which term describes this reaction? addition condensation elimination substitution
Answers
Answer:
Addition
Explanation:edg 2020
Answer:
The correct answer is A.
Explanation:
Edge 2022
When forming an ionic bond, how does the configuration of valence electrons change
Answers
Answer:
Ionic bonds are a class of chemical bonds that result from the exchange of one or more valence electrons from one atom, typically a metal, to another, typically a nonmetal. This electron exchange results in an electrostatic attraction between the two atoms called an ionic bond.
Explanation:
Answer:
The electrons are transferred from one atom to another. The atom that loses electrons becomes positive.
Explanation:
I don't really understand what form of an answer you need but I hope this helps?
How many moles of sodium are needed to produce 2.4 mol of sodium oxide?
Answers
Answer:
Explanation:
4
N
a
+
O
2
→
2
N
a
2
O
.
By the stoichiometry of this reaction if 5 mol natrium react, then 2.5 mol
N
a
2
O
should result.
Explanation:
The molecular mass of natrium oxide is
61.98
g
⋅
m
o
l
−
1
. If
5
m
o
l
natrium react, then
5
2
m
o
l
×
61.98
g
⋅
m
o
l
−
1
=
154.95
g
natrium oxide should result.
So what have I done here? First, I had a balanced chemical equation (this is the important step; is it balanced?). Then I used the stoichiometry to get the molar quantity of product, and converted this molar quantity to mass. If this is not clear, I am willing to have another go.
2. How much Heat will be absorbed when 14 grams of Nitrogen reacts with excess 02according to the following equation?N2 + 02 --> 2NOH = 200 kJ
Answers
99.93kJ
Explanations:
Given the chemical reaction expressed as:
\(N_2+O_2\rightarrow2NO\text{ }\triangle H=200kJ\)From the reaction, 1 mole of nitrogen absorbs 200kJ of heat.
Determine the mole of nitrogen
\(\begin{gathered} mole\text{ of N}_2=\frac{mass}{molar\text{ mass}} \\ mole\text{ of N}_2=\frac{14g}{28.02g\text{/mol}} \\ mole\text{ of N}_2=0.4996moles \end{gathered}\)The amount of energy 0.4496moles of N2 will absorb is given as:
\(\begin{gathered} energy\text{ absorbed by }N_2=0.4496\times200 \\ energy\text{ absorbed by }N_2=99.93kJ \end{gathered}\)Hence the amount of heat that will be absorbed when 14 grams of Nitrogen reacts with excess O2 is 99.93kJ
PLS HELP NO LINKS PLS WILL MARK BRAINLIEST IF CORRECT
What kinds of observations can be made with atomic probe microscopes?
a. Materials can be seen in micrometers which are millionths of a meter on the scale of blood cells.
b. Materials can be seen in picometers which are trillionths of a meter or the size atoms.
c. Materials can be seen in nanometers which are billionth of a meter, slightly larger than atoms.
d. Materials can be seen in millimeters which are thousandths of a meter or the size sand particles.
Answers
Answer:
The Answer would be B (Materials can be seen in picometers which are trillionths of a meter or the size atoms.
Explanation:
90 is 50% of what number?
Part = Whole x Percent
P:
W:
%
Answers
Answer:
90 is 50% of 180
Explanation:
Just multiply 80 by 2 for 50%
what happen when a piece of silver metal is added to the copper sulphate solution
Answers
Answer:
Explanation:When silver Ag metal is added to copper sulphate CuSO4 solution, no reaction takes place as silver is less reactive than that of copper and cannot displace copper from its solution. Hence, when a piece of silver metal is added to copper sulphate solution there will be no reaction.
Answer:
There will be no reaction
Explanation:
Therefore, when silver Ag metal is added to copper sulphate CuSO4 solution, no reaction takes place as silver is less reactive than that of copper and cannot displace copper from its solution. Hence, when a piece of silver metal is added to copper sulphate solution there will be no reaction.
Rank the following atoms according to decreasing first ionization energy. (i.e. 1 = highest and 4 = lowest)
Options are Al, P, Mg, K?
Answers
The decreasing order of ionization energy will be Mg >Al >P>K.
Ionization energy sometimes referred to as ionization potential, would be the amount of energy it takes to eliminate an electron from a single, isolated atom or molecule.
On moving top to bottom in the periodic table, ionization energy will decrease rapidly.
Al =13 (group 3)
P =15 (group 5)
Mg =12 (group 2)
K =19 (group 1)
The decreasing order of ionization energy will be Mg >Al >P>K.
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