elements with similar chemical properties are found in a(n)_____ area on the periodic table. an element that is malleable and ductile is likely to be a(n)_____area. when an atom loses electrons, it forms a positively-charged particle called a(n)_____area. response area is the term used for any charged particle. metals tend to form ions with a(n) ______area charge. anions are particles with a(n)______area charge.
Choices: Cation, Group, Ion, Metal, Negativ, Positive
Answers
Elements with similar chemical properties are found in a group area on the periodic table. A group is a vertical column that contains elements with similar properties.
For example, the halogens (fluorine, chlorine, bromine, iodine, and astatine) are all found in group 17 because they have similar chemical properties.
An element that is malleable and ductile is likely to be a metal area. Metals have the ability to be hammered into thin sheets (malleability) and drawn into wires (ductility) due to their metallic bonding.
When an atom loses electrons, it forms a positively-charged particle called a cation area. A cation is an ion with a positive charge, which is formed when an atom loses one or more electrons.
Response area is the term used for any charged particle, whether it is a cation or an anion.
Metals tend to form ions with a positive area charge because they have a tendency to lose electrons and form cations.
Anions are particles with a negative area charge. They are formed when an atom gains one or more electrons, resulting in a negatively-charged ion.
Learn more about periodic table here:
https://brainly.com/question/11155928
#SPJ11
Related Questions
Fumarase catalyzes the conversion of fumarate to L-malate. It has a Km of 2.0 mM for fumarate, and a Vm of 2.6 mmol-min-1 per mg enzyme. What would be the rate of the reaction when the fumarate concentration is 1.2 mM and the amount of enzyme is 100 micrograms
Answers
The rate of the reaction when the fumarate concentration is 1.2 mM and the amount of enzyme is 100 micrograms is approximately 0.975 mmol-min-1 per mg enzyme.
The rate of the reaction can be calculated using the Michaelis-Menten equation:
\(V = (Vm * [S]) / (Km + [S])\)
Where:
V is the rate of the reaction
Vm is the maximum velocity (2.6 mmol-min-1 per mg enzyme)
[S] is the substrate concentration (1.2 mM)
Km is the Michaelis constant (2.0 mM)
By substituting the values into the equation, we can find the rate of the reaction:
V = (2.6 mmol-min-1 per mg enzyme * 1.2 mM) / (2.0 mM + 1.2 mM)
V = (3.12 mmol-min-1 per mg enzyme) / (3.2 mM)
V ≈ 0.975 mmol-min-1 per mg enzyme
Therefore, the rate of the reaction when the fumarate concentration is 1.2 mM and the amount of enzyme is 100 micrograms is approximately 0.975 mmol-min-1 per mg enzyme.
To know more about rate of the reaction, refer
https://brainly.com/question/24795637
#SPJ11
This image shows a...
Answers
Answer:
I think is the last one!!!! punnet square ⬜
why hydroxide an oxidation reaction??
Answers
Answer:
sorry I didn't know this one i did all the work and stuff and still couldn't get it sorry
Aside from color, how are light silicates and dark silicates different, and why?Light silicates have a higher specific gravity because they lack iron and magnesium, whereas dark silicates have a lower specific gravity due to their high iron and magnesium content. Light silicates have a higher specific gravity Due to their high iron and magnesium content, whereas dark silicates have a lower specific gravity because they lack iron and magnesium. Light silicates have a higher specific gravity because they have high iron content; dark silicates have a lower specific gravity due to their magnesium content.Light silicates have a lower specific gravity because they lack iron and magnesium; dark silicates have a higher specific gravity because they have high iron and magnesium content. Light silicates have a lower specific gravity because they have high iron and magnesium content, whereas dark silicates have a higher specific gravity because they lack iron and magnesium.
Answers
Because they include a lot of iron and magnesium, light silicates have a lower specific gravity than dark silicates, which have a greater specific gravity.
What other characteristics of bright and dark coloured silicates are different?This difference is mostly caused by the amounts of iron and magnesium that are present; light silicates have significantly less iron and magnesium and, in comparison to dark silicates, comparatively more potassium, aluminium, and sodium.
Why are dark and light silicates distinct from one another?Because they include a lot of iron and magnesium, light silicates have a lower specific gravity than dark silicates, which have a greater specific gravity.
To know more about magnesium visit:-
https://brainly.com/question/1533548
#SPJ1
A solution consists of 42. 00 g of CoSO4 dissolves in 200. 0 mL of water. The molar mass of Cu is 63. 55 g/mol, the molar mass of S is 32. 07 g/mol, and the molar mass of O is 16. 00 g/mol. What is the molarity of the solution?
Answers
Answer:
1.3155M
Explanation:
molar mass of CuSO4
=63.55+32.07+16(4)
=159.62g/mol
n=mass/molar mass
n=42.00/159.62
n=0.2631mol
volume=200mL=0.2L
molarity=mole (n)/volume (v)
molarity=0.2631mol/0.2L
molarity=1.3155M
PLS HELP ASAPP NEED RN
1. Compare the spatial arrangements of Zn atoms in the reactants to the spatial arrangements of the hydrogen
gas molecules in the products.
2. Calculate the mass of the hydrogen gas produced if the reaction goes to completion producing 2.05 g of
ZnCl2.
3. Draw a balanced particle model that shows how the reactants changed into the products.
Answers
Let us take our minds back to the kinetic theory of matter. Recall that the particles that compose matter are in constant random motion and the solids are arranged in a definite pattern while the particles of a gas are in random motion.
As such, the zinc has its atoms in a fixed pattern while the hydrogen atoms are roaming freely in the gaseous state.
Given that;
Amount of the acid = 10.95 g/36.5 g/mol = 0.3 moles
Amount of the zinc = 1g/65 g/mol = 0.015 moles
Given the reaction equation; \(Zn(s) + 2HCl(aq) ------ > ZnCl_{2} (aq) + H_{2}(g)\)
1 mole of Zn reacts with 2 moles of acid
0.015 moles of zinc reacts with x moles of acid
x =0.015 moles * 2 moles / 1 mole
= 0.03 moles
Thus, the zinc is the limiting reactant.
1 moles of the zinc produces 1 mole of the hydrogen
The amount of the hydrogen produced = 0.03 moles * 2 g/mol
= 0.06 moles of hydrogen
Learn more about stoichiometry:https://brainly.com/question/9743981
#SPJ1
A molecule in which central atom has 12 electrons after sharing.
Answers
Answer:
SF6
Explanation:
Octet Rule
The central atom covalent bounds with 6 flourine atoms.
which intermolecular forces (imfs) would be present between water (h2o) and benzene(c6h6)?
Answers
The intermolecular forces present between water (\(H_2O\)) and benzene (\(C_6H_6\)) include dipole-dipole interactions between water molecules and London dispersion forces between benzene molecules.
Water is a polar molecule, meaning it has a positive end (hydrogen) and a negative end (oxygen). Benzene, on the other hand, is a nonpolar molecule due to its symmetrical structure. The difference in polarity leads to the presence of dipole-dipole interactions between water molecules. These interactions occur when the positive end of one water molecule is attracted to the negative end of another, forming temporary bonds.
In contrast, benzene molecules experience London dispersion forces, which are weak intermolecular forces between nonpolar molecules. These forces arise from temporary fluctuations in electron distribution, resulting in temporary dipoles within the molecule. The temporary dipoles induce dipoles in neighboring molecules, leading to attractive forces.
Overall, the main intermolecular forces between water and benzene are dipole-dipole interactions between water molecules and London dispersion forces between benzene molecules. These forces play a crucial role in determining the physical and chemical properties of substances and their interactions in various contexts.
Learn more about intermolecular forces here:
https://brainly.com/question/31797315
#SPJ11
Objectives
At the completion of this lab, the student will be able to:
1. Apply the formulas and to determine the output using for the MC-culloch & Pitts neuron model for various logic functions.
2. Run a perceptron model using MATLAB and determine the outputs using various inputs parameters.
Equipment and Materials:
Computer with MATLAB environment
Form a group of three students and perform the simulation in MATLAB
Lab Activity: Simulation
Design and develop the Artificial Neural network model for the following experiments
Experiment 1: McCulloch and Pitts Network
Experiment 2: Hebbian Network
1. Design and train a neural network system which can perform AND and OR operation.
2. Tune the neural network model and minimize the error by updating the weights and perform the testing.
3. Run the simulation in group and explain the working principles of the algorithm. 4. Interpret the output of the designed neural network system by varying the inputs
Answers
The main objective of the lab is to design and develop an Artificial Neural Network model for two experiments: the McCulloch and Pitts Network and the Hebbian Network. The students will design and train a neural network system capable of performing AND and OR operations.
They will also tune the model to minimize errors by updating the weights and conducting testing. The simulation will be run in groups, where the working principles of the algorithm will be explained. The output of the neural network system will be interpreted by varying the inputs.
The lab aims to provide students with practical experience in working with artificial neural networks. In Experiment 1, the students will focus on the McCulloch and Pitts Network and implement it to perform logic operations like AND and OR. They will train the neural network model and update the weights to minimize errors. Through testing, the effectiveness of the designed model will be evaluated.
In Experiment 2, the students will explore the Hebbian Network and its learning principles. They will gain insights into how the network adjusts its connections based on the input and output patterns. The students will analyze the behavior of the network and its ability to learn and adapt.
The lab emphasizes collaborative work, as students are expected to form groups and run the simulation together. This encourages discussion and explanation of the algorithm's working principles among peers. Additionally, varying the inputs and observing the corresponding outputs will allow the students to understand how the neural network system responds to different scenarios and interpret its functioning.
learn more about Hebbian Network here:
https://brainly.com/question/33291958
#SPJ11
Using the model of the periodic table, which elements pictured are in the same period?
Answers
I need help with 4, 5, 8, 9, and 6. Quickly I need it before class starts. Worth points!!!!!! HelP
Answers
Answer:
4. 264.6J
5. 37.5J
6. 96J
7. 55Watts
8. 77.14m
9. 6s
10. 750Watts
Explanation:
4). Mechanical energy (potential energy) = mass (m) × acceleration due to gravity (g) × height (h)
m = 3kg, h = 9m, g = 9.8m/s²
P.E = 3 × 9 × 9.8
= 264.6J
5). Kinetic energy (K.E) = 1/2 × m × v²
Where;
m = mass (kg) = 3kg
v = velocity (m/s) = 5m/s
K.E = 1/2 × 3 × 5²
K.E = 1/2 × 3 × 25
K.E = 1/2 × 75
K.E = 37.5J
6). Work done (J) = Force (N) × distance (m)
Force = 12N, distance = 8m
Work done = 12 × 8
= 96J
7). Power = work done (J) ÷ time (s)
Work done = 550J, time = 10s
Power = 550/10
= 55Watts.
8). Work done = force (F) × distance (m)
Work done = 540J, force = 7N, distance = ?
540 = 7 × d
540 = 7d
d = 540/7
d = 77.14m
9). Power = work done (J) ÷ time (s)
Work done = 300J, time = ?, Power = 50Watts.
50 = 300/t
50t = 300
t = 300/50
t = 6seconds.
10). Power = work done (J) ÷ time (s)
This means that;
Power = force × distance / time
Force = 300N, distance = 5m, time = 2s
Power = 300 × 5 ÷ 2
Power = 1500 ÷ 2
Power = 750Watts
What is the balanced reduction half-reaction for the unbalanced oxidation-reduction reaction? Na(s) + Cl2lo) - NaCl(s) 1. Cla) + 2 - 2 C1"(s) 2. Cl2(g) 2 + 2 C1-(s) 3. Na(s) + +-Nat(s) 4. Na(s) - Na'(s) + 2 O 1
Answers
The balanced equation shows that two sodium atoms react with one chlorine molecule to form two molecules of sodium chloride.
The balanced reduction half-reaction for the unbalanced oxidation-reduction reaction Na(s) + Cl2(g) → NaCl(s) can be found by identifying the species being reduced. In this case, it is the chlorine molecule (Cl2) that is being reduced to form chloride ions (Cl-). The reduction half-reaction for this process can be written as follows:
Cl2(g) + 2e- → 2Cl-(aq)
This equation represents the balanced reduction half-reaction for the given oxidation-reduction reaction. To balance the full reaction, we need to combine it with the oxidation half-reaction, which represents the oxidation of sodium atoms (Na) to form sodium ions (Na+). The oxidation half-reaction can be written as:
Na(s) → Na+(aq) + e-
By combining the two half-reactions, we get the balanced oxidation-reduction reaction:
2Na(s) + Cl2(g) → 2NaCl(s)
This reaction represents the balanced reduction half-reaction and oxidation half-reaction combined. The reduction half-reaction involves the gain of electrons by chlorine atoms, while the oxidation half-reaction involves the loss of electrons by sodium atoms. The balanced equation shows that two sodium atoms react with one chlorine molecule to form two molecules of sodium chloride.
learn more about atoms
https://brainly.com/question/1566330
#SPJ11
Consider the reaction 2NaN3 → 2Na + 3N2, which is the first reaction that occurs when an air bag expands in a car undergoing a collision. This reaction happens very quickly, as you might suspect.
A graph showing the amount of nitrogen gas (N2) could be best described as which sentence?
Answers
The graph of the reaction would show a rapid increase in the amount of nitrogen gas followed by a flat line, indicating a constant amount of N2.
A graph showing the amount of nitrogen gas (N2) in the reaction 2NaN3 → 2Na + 3N2, which occurs during the expansion of an airbag in a car collision, can be best described by the sentence: "The amount of nitrogen gas rapidly increases and then levels off."
At the beginning of the reaction, there is no nitrogen gas present since it is initially bound within the sodium azide compound (NaN3). As the reaction progresses, the NaN3 decomposes into sodium (Na) and nitrogen gas (N2). The amount of nitrogen gas produced increases rapidly as the reaction proceeds and reaches its maximum rate.
Once all the NaN3 has been consumed and converted into products, the production of nitrogen gas ceases, resulting in a plateau or leveling off of the amount of N2. This indicates that the reaction has reached completion, and no further nitrogen gas is generated.
Therefore, the graph of the reaction would show a rapid increase in the amount of nitrogen gas followed by a flat line, indicating a constant amount of N2.
For more question on reaction
https://brainly.com/question/25769000
#SPJ8
calculate the number of nitrate ions present in an 800.0 ml aqueous solution containing 22.5 g of dissolved aluminium nitrate.
Answers
The number of nitrate ions present in an 800.0 ml aqueous solution containing 22.5 g of dissolved aluminium nitrate is 1.91 × 10²³.
To calculate the number of nitrate ions present in an aqueous solution of aluminum nitrate, we first need to determine the number of moles of aluminum nitrate using its molar mass. The molar mass of aluminum nitrate (Al(NO₃)₃) is:
Al: 26.98 g/mol
N: 14.01 g/mol
O: 16.00 g/mol
Molar mass of Al(NO₃)₃ = (26.98 g/mol) + 3 * [(14.01 g/mol) + (16.00 g/mol)] = 26.98 g/mol + 3 * 30.01 g/mol = 213.00 g/mol
Next, we can calculate the number of moles of aluminum nitrate (Al(NO₃)₃) in the solution using its mass:
moles = mass / molar mass
moles = 22.5 g / 213.00 g/mol
moles = 0.1059 mol
Since aluminum nitrate dissociates in water to form one aluminum ion (Al⁺³) and three nitrate ions (NO₃⁻), the number of nitrate ions will be three times the number of moles of aluminum nitrate:
Number of nitrate ions = 3 * moles of Al(NO₃)₃
Number of nitrate ions = 3 * 0.1059 mol
Number of nitrate ions = 0.3177 mol
Finally, to convert the number of moles of nitrate ions to the number of nitrate ions in the solution, we can use Avogadro's number (6.022 × 10²³ ions/mol):
Number of nitrate ions = moles of nitrate ions * Avogadro's number
Number of nitrate ions = 0.3177 mol * 6.022 × 10²³ ions/mol
Number of nitrate ions = 1.91 × 10²³ ions
Therefore, there are approximately 1.91 × 10²³ nitrate ions present in an 800.0 ml aqueous solution containing 22.5 g of dissolved aluminum nitrate.
To know more about aluminium nitrate here
https://brainly.com/question/79967
#SPJ4
How many moles of magnesium chloride are formed when 1.204 g Mg(OH)2 is added to 55 mL of 0.70 M HCl? Mg(OH)2(s) + 2HCl(aq) MgCl2(aq) + 2H2O(l)
Answers
The moles of magnesium chloride are formed when 1.204 g Mg(OH)2 is added to 55 mL of 0.70 M HCl are 0.02064 mol.
The number of moles of HCl in the solution can be calculated as shown below.
moles HCl = volume x concentration
moles HCl = 0.055 L x 0.70 mol/L
moles HCl = 0.0385 mol
The balanced chemical equation of Mg(OH)₂ that react with the HCl is shown below.
Mg(OH)₂ + 2 HCl → MgCl₂ + 2 H₂O
According to the above reaction, one mole of Mg(OH)₂ reacts with two moles of HCl to produce one mole of MgCl₂.
The moles of Mg(OH)₂can be calculated as shown below.
moles Mg(OH)₂ = mass Mg(OH)₂ / molar mass Mg(OH)₂
The molar mass of Mg(OH)2 is 58.32 g/mol.
moles Mg(OH)₂ = 1.204 g / 58.32 g/mol
moles Mg(OH)₂ = 0.02064 mol Mg(OH)₂
Since two moles of HCl react with one mole of Mg(OH)₂, the number of moles of HCl that react is twice that of Mg(OH)2, or:
moles HCl = 2 x moles Mg(OH)₂
moles HCl = 2 x 0.02064 mol Mg(OH)₂
moles HCl = 0.04128 mol HCl
Since the reaction is complete when all of the HCl has reacted with the Mg(OH)₂, the limiting reactant is Mg(OH)₂. Therefore, all of the moles of HCl will react with 0.02064 moles of Mg(OH)₂ to form MgCl₂. The number of moles of MgCl₂ formed is also 0.02064 mol.
Therefore, the number of moles of magnesium chloride is 0.02064 mol.
Learn more about stoichiometry:
https://brainly.com/question/30215297
#SPJ4
Arrange these places in order of how safe they are to live in (safest first): Japan, Spain, Ireland, Australia, Iceland.
Answers
According to World Population Review 2022 the safest country to live are as follows.
Iceland is the safest amongst all.IrelandJapanSpainAustralia is least safe in this particular list.These countries are listed safe by calculating global peace index.
What is global peace index?This index measures the nation's and regions peacefulness and is finally reviewed by Institute of Economic and Peace (IEP).
The role of IEP is to measure peace at the worldwide and country level degree and lets us to evaluate the social, political and financial elements that create peace. Each year the Institute for Economics and Peace produces the Global Peace Index, the world’s main degree of countrywide peacefulness, rating 163 nations in line with their ranges of peace.
To know more about global peace click on:
brainly.com/question/16689991
#SPJ9
What is the IUPAC name for the following compound? HC∣∣O−O−C∣∣OH
Answers
The IUPAC name for the compound is 2-Hydroxypropanoic Acid.
This compound is an organic acid composed of a three-carbon chain with a hydroxyl group and a carboxyl group.2-Hydroxypropanoic acid, also known as lactic acid, is a carboxylic acid that is a common metabolic intermediate in the breakdown of carbohydrates and proteins. It is an important part of the citric acid cycle and is produced in large amounts during the process of cellular respiration. Lactic acid is also an important component of many dairy products such as yogurt and cheese, and is used in some food processing techniques. It is used in the production of polylactic acid, a biodegradable plastic, and has also found uses in the medical and cosmetics industries.
learn more about hydroxyl group Refer:brainly.com/question/23639315
#SPJ4
In this vLab you used a complex machine to launch a projectile with the ultimate goal of hitting a target. Assume you built a really big machine that could launch the projectile a “significant” distance; for instance, several hundred miles. Write a brief essay discussing the issues that would need to be accounted for with a projectile with that type of range. Be sure to include how those issues affect the range of the projectile.
Answers
Launching a projectile over a significant distance, such as several hundred miles, presents a range of complex challenges that must be carefully addressed. The success of achieving such a long range relies on accounting for various factors that influence the projectile's trajectory, including aerodynamics, atmospheric conditions, Earth's curvature, and external forces.
Air resistance can gradually decrease the projectile's speed, and the influence of wind could lead to the projectile drifting off the target. The size and shape of the projectile must be taken into consideration because these attributes can have a significant impact on the drag coefficient, which is a key factor in projectile performance. The larger the projectile's size, the more air resistance it will experience, lowering its range. The projectile's shape may cause the air to circulate over it, decreasing air resistance, which may result in a greater range. Finally, the materials used in the projectile's construction must be able to withstand the forces and heat generated when it is launched, particularly if it travels a long distance. The projectile must also be aerodynamic in order to be able to travel a long distance with ease.Thus, it can be concluded that the range of the projectile can be affected by factors such as air resistance, wind, size, shape, material, and aerodynamics.For such more questions on projectile
https://brainly.com/question/23827445
#SPJ8
mercury thermometer should not be placed in the mouth of the children why?
Answers
Answer: If a pinch of mercury is consumed you will die from it so using a mercury thermometer is very unsafe if its breaks and a child consumes that mercury.
Explanation:
Don't use one
If the glass breaks and the mercury is not properly cleaned up, the little silvery ball within a mercury thermometer might be hazardous. As the mercury evaporates, it may pollute the air around and turn dangerous to both people and animals.
Children that have been exposed to mercury have lower IQs, hearing impairments, and worse coordination.
Long-term exposure worsens and exacerbates symptoms, which may lead to personality changes or even coma.
Mercury thermometers can be replaced by a number of things:
electronic thermometersGlass thermometers with gallium tinalcohol thermometers in glassThese non-mercury fever thermometers are significantly safer and equally accurate as mercury thermometers.
Read more about Mercury Thermometers :
https://brainly.com/question/27323100
if you add 0.5312 g of benzoic acid to a 100 ml volumetric flask and then add enough water to bring the total volume to 100.00 ml, how many ml of 0.2514 m naoh solution will be required to completely neutralize the benzoic acid (pka
Answers
In the 100 ml volumetric flask, 17.3 mL of a 0.2514 M NaOH solution will be needed to fully neutralise the benzoic acid.
The first step in calculating the volume of NaOH required to neutralize the benzoic acid is to determine how many moles of benzoic acid are present in the 100 ml volumetric flask.
We can do this by dividing the mass of benzoic acid by its molar mass:
0.5312 g / 122.12 g/mol = 0.004346 mol benzoic acid
Since benzoic acid is a weak acid, we can use the Henderson-Hasselbalch equation to calculate the pH of its solution:
pH = pKa + log([A-⁻]/[HA])
The pKa of benzoic acid is 4.20. At the equivalence point of the titration, [A-] = [HA], so we can simplify the equation to:
pH = pKa + log(1) = pKa = 4.20
This means that the benzoic acid will be fully ionized at pH 4.20, and the volume of NaOH required to neutralize it can be calculated by using the balanced equation:
C₆H₅COOH + NaOH → NaC₆H₅COO + H₂O
The stoichiometric ratio of benzoic acid to NaOH is 1:1, so the moles of NaOH required to neutralize the benzoic acid is also 0.004346 mol.
To calculate the volume of 0.2514 M NaOH required to provide this number of moles, we can use the following equation:
moles = concentration x volume
0.004346 mol = 0.2514 mol/L x volume
volume = 0.0173 L = 17.3 mL
Therefore, 17.3 mL of 0.2514 M NaOH solution will be required to completely neutralize the benzoic acid in the 100 ml volumetric flask.
To learn more about benzoic acid refer to:
brainly.com/question/24052816
#SPJ4
When 11.2 g of an unknown, non-volatile, non-electrolyte, X was dissolved in 100. g of water, the vapor pressure of the solvent decreased from 23.8 torr to 23.6 torr at 298 K. Calculate the molar mass of the solute, X.
Answers
The given problem is solved with the help of Raoult's law. Raoult's law is the law that expresses the vapor pressure of an ideal solution as the product of the mole fraction of the solvent in the solution and the vapor pressure of the pure solvent.
It is given that when 11.2 g of an unknown, non-volatile, non-electrolyte, X was dissolved in 100. g of water, the vapor pressure of the solvent decreased from 23.8 torr to 23.6 torr at 298 K. Using Raoult's law, we can find the molar mass of X. The mole fraction of X in the solution is found by using the mass of X and mass of the solution. It is used to calculate the moles of X. We can calculate the molarity of X by dividing the moles of X with the volume of the solution. Therefore, the molar mass of X is 112.37 g/mol.
To know more about Raoult's law visit :
https://brainly.com/question/2253962
#SPJ11
4. The lake water changes color rapidly on exposure to air. Suggest a factor that may affect the
speed of the reaction in Blood Falls. This question is not in the article directly. Give a reasonable
guess, that shows thought and effort.
Answers
A factor that might affect the speed of reaction of the water in Blood Falls is the concentration of iron in the water.
How can the speed of reaction of the lake water be affected ?Blood Falls is located in the McMurdo Dry Valleys of Antarctica, where a subglacial lake with a high concentration of iron mixes with oxygenated seawater to create the characteristic reddish color of Blood Falls.
The speed of this reaction may be influenced by the amount of iron present in the water, as well as the availability of oxygen to react with the iron. If the concentration of iron is high, the reaction may proceed more quickly than if the concentration is lower.
Find out more on speed of reaction at https://brainly.com/question/30769790.
#SPJ1
If 0.889J of heat causes a 0.124 degree C temperature change, what mass of water is present?
Answers
0.889 ÷ 4187 ÷ 0.124 = 0.00171
9. A sample of neon gas has a volume of 752 mL at 25.0 °C. What will the volume at 10.0 °C be if the pressure is constant?
Answers
Answer & Explanation:
We can use the combined gas law to solve this problem:
(P₁V₁)/T₁ = (P₂V₂)/T₂
where P is pressure, V is volume, and T is temperature in Kelvin.
First, let's convert the temperatures to Kelvin:
T₁ = 25.0 °C + 273.15 = 298.15 K
T₂ = 10.0 °C + 273.15 = 283.15 K
Next, plug in the values we know:
(P₁)(752 mL)/(298.15 K) = (P₂)(V₂)/(283.15 K)
Since the pressure is constant, we can simplify the equation:
(P₁)(752 mL)/(298.15 K) = (P₂)(V₂)/(283.15 K)
(P₁)(752 mL)(283.15 K) = (P₂)(298.15 K)(V₂)
(P₁)(752 mL)(283.15 K)/(298.15 K) = P₂V₂
V₂ = (P₁)(752 mL)(283.15 K)/(P₂)(298.15 K)
We don't know the pressure, so we can't solve for V₂ directly. However, if we assume that the pressure stays the same, we can use the ideal gas law to find the pressure:
PV = nRT
where n is the number of moles of gas and R is the gas constant.
We know that neon is a monatomic gas with a molar mass of 20.18 g/mol. Let's assume we have one mole of neon gas:
PV = (1 mol)(8.314 J/(mol·K))(283.15 K)
P = (8.314 J/(mol·K))(283.15 K)/V
P = 2355 Pa
Now we can solve for V₂:
V₂ = (P₁)(752 mL)(283.15 K)/(P₂)(298.15 K)
V₂ = (1 atm)(752 mL)(283.15 K)/(2355 Pa)(298.15 K)
V₂ = 0.822 L or 822 mL (rounded to three significant figures)
Therefore, the volume of the neon gas at 10.0 °C and constant pressure should be approximately 822 mL.
the law of mass action reflects the observation that an equilibrium state is reached by a chemical system regardless of the concentrations of reacting substances. in other words, a chemical system can reach equilibrium either from the reactants or from the . need help? review these concept resources.
Answers
the law of mass action reflects the observation that an equilibrium state is reached by a chemical system regardless of the initial concentrations of reacting substances. in other words, a chemical system can reach equilibrium either from the reactants or from the products.
According to the rule of mass action, the rate of a reaction is thus inversely proportional to the product of the activity (or, to put it another way, concentration) of the reactants.
According to the rule of mass action, the chemical system can proceed from any direction, starting with a mixture of reactants or products, or even both, and eventually reaching a condition where the concentrations of reactants and products are in an equilibrium with a constant ratio.
learn more about law of mass action at https://brainly.com/question/1397320
#SPJ4
how to determine if a molecule will have a zero dipole moment
Answers
The process that fuels a star is BEST described as
A)
helium molecules being burned by fire.
B)
fusion of helium molecules to form hydrogen.
C)fission of helium molecules to form hydrogen.
D)
hydrogen molecules being forced together by gravity.
Answers
Answer:d
Explanation:
d
Hydrogen molecules being forced together by gravity is what best describes how a star is fuelled.
What is Gravity?This is defined as the the universal force of attraction acting between all matter.
Hydrogen molecules is forced together by gravity which is how stars are fuelled in space thereby making option D the most appropriate choice.
Read more about Stars here https://brainly.com/question/3357478
can an individual atom theoretically be resolved using this electron microscope?
Answers
No, an individual atom cannot be resolved using a conventional electron microscope. The resolution of an electron microscope is ultimately limited by the wavelength of the electrons used.
While electron microscopes can achieve impressive resolution, down to the sub-nanometer scale, they still fall short of being able to directly visualize individual atoms.
The wavelength of electrons is inversely proportional to their momentum, and to achieve shorter wavelengths, higher accelerating voltages are required. However, even with high accelerating voltages, the de Broglie wavelength of electrons at typical energies used in electron microscopes is still on the order of picometers (10^-12 meters). This is comparable to the spacing between atoms in solid materials.
To directly resolve individual atoms, a technique called aberration-corrected electron microscopy can be employed, which compensates for the aberrations in the electron beam to achieve sub-angstrom resolution. However, even with this advanced technique, directly visualizing individual atoms remains challenging and is not routinely achieved.
Alternatively, other techniques such as scanning probe microscopy, such as atomic force microscopy (AFM) or scanning tunneling microscopy (STM), are better suited for imaging individual atoms and atomic structures. These techniques utilize a probe tip to interact with the sample surface and can achieve atomic resolution.
Learn more about electron here:
https://brainly.com/question/28977387
#SPJ11
The Genetic Code
1. What would the codon sequence (s) be for:
a. Glycine ______________
b. Methionine ______________
2. What is the mRNA stop codon?
3. What are the m-RNA’s stop codons?
4. What amino acid sequence would be made from the mRNA sequence AGUGCGAUGCCG
5. What amino acid sequence would be made from the DNA sequence
CGTTATCGGACT
Answers
Answer:
a. GGG, GGC, GGA. GGU
B. AUG
2. UAA or UAG
3.UAA or UAG
4.Serine-Alanine-Methoionine-Proline
5.Arginine-Isolucine- Proline-Theorine
Explanation:
Sorry if I'm wrong
Hope this Helps!
1) Solution
a. GGG, GGC, GGA, GGU
b. AUG
2) Solution
UAA or UAG
3) Solution
UAA or UAG
4) Solution
Serine-Alanine-Methoionine-Proline
5) Solution
Arginine-Isolucine- Proline-Theorine
Question 2
State the parameter plotted on the x-axis of a mass spectrum, in the form of_to_ratio. Give the answer using two words only separated by a space.
Answers
the parameter plotted on the x-axis of a mass spectrum, in the form 'mass to charge ratio'
Mass spectroscopy is the analytical tool useful for measuring the mass to charge ratio means m/z of one or more molecule present in a sample it is a technique in which the separates ionized particles such as atom, molecules by using differences in the ratio of their respective mass and also can be used to determine the molecular weight of the particles and in the mass spectrum the x axis are shown mass to charge ratio and y axis are shown abundance or relative intensity
Know more about mass spectrum
https://brainly.com/question/2988581
#SPJ1