what happens during vaporization and evaporation?

Answers

Answer 1

Answer: with vaporization, think of hot water, at a point it starts to boil and steam is created. that's water vapor then it dissipates. With evaporation, think of rain, whewn it rains, the grouns doesn't soak it all up, It goes through the cycle. clouds, rain, evaporation, clouds again. does that make scene?

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The net energy released or absorbed during a reversible chemical reaction is equal to(1) the activation energy of the endothermic reaction (2) the activation energy of the exothermic reaction (3) the difference between the potential energy of the products and the potential energy of the reactants (4) the sum of the potential energy of the products and the potential energy of the reactants
a car traveling at 20 m/s starts to decelerate steadily it comes to a complete stop in 10s .what is its acceleration

A supervisor spends a day inspecting a nuclear plant for potential radiation leaks. She has to move throughout the plant inspecting all the equipment and machinery. She needs to take two different radiation detection devices to help ensure her safety and to find radiation leaks. She needs the results immediately. Which two devices would be the best choices for the task?

Answers

In order to immediately detect traces and signs of radiation leaks in the nuclear power plant, the supervisor must use two devices that readily give its results. These devices could be a Geiger-Mueller tube or Geiger counter and a Personal Radiation Detector (PRD). A PRD has a very fast response time, while a Geiger counter also displays results real time.

Answer:

Geiger-Mueller tube or Geiger counter and a Personal Radiation Detector (PRD).

Explanation:

How many atoms are in 0.750 moles of zinc?

Answers

There are approximately 4.52 x 10^23 atoms in 0.750 moles of zinc.

How to find the number of atoms

To determine the number of atoms in a given amount of a substance, you can use Avogadro's number, which is approximately 6.022 x 10^23 atoms/mol.

Given that you have 0.750 moles of zinc, you can calculate the number of atoms using the following steps:

Multiply the given number of moles by Avogadro's number:

0.750 moles * (6.022 x 10^23 atoms/mol) = 4.5165 x 10^23 atoms

Round the result to an appropriate number of significant figures:

Since the value given has three significant figures, the final answer should be rounded accordingly. Therefore, the number of atoms in 0.750 moles of zinc is approximately 4.52 x 10^23 atoms.

So, there are approximately 4.52 x 10^23 atoms in 0.750 moles of zinc.

Learn more about zinc at

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(doesn't really matter that it's zinc :) )
It is $0.75*N_A$ , where $N_A=6.023*10^(23)$ (in some books 6.022).

what is the concentration, in percent (v/v), of a solution containing 50 mL of diethyl ether (C4H10O) in 2.5 L of solution?

Answers

Answer: The v/v in percent of diethyl ether in a solution is 2%.

Explanation:

To calculate the percentage volume by volume of a solute in a solution, we use the formula:

$\%(v/v)=\frac{\text{Volume of solute (in mL)}}{\text{Volume of solution (in mL)}}* 100$

We are given:

Volume of solute = 50 mL

Volume of solution = 2.5 L = 2500 mL (Conversion factor: 1 L = 1000 mL)

Putting values in above equation, we get:

$\%(v/v)=(50mL)/(2500mL)* 100=2\%$

Hence, the v/v in percent of diethyl ether in a solution is 2%.

Volume of solute = 50 mL

Volume of solution = 2.5 L x 1000 = 2500 mL

( V / V ) = ( 50 / 2500 ) x 100

( V/ V) =0.02 x 100 = 2.0 %

hope this helps!

Express the answer in scientific notation and with the correct number of significant figures: (6.32 x 10-4) ÷ 12.64

Answers

Answer : $5.0 X 10^(-5)$

Explanation : We need to simply calculate the division for finding the correct answer and which can be expressed in scientific notation.

$(6.32 X 10^(-4) )/(12.64)$

The answer on solving will be $5.0 X 10^(-5)$ .

Simple division method was used to find out the answer.

Im pretty surr this is an odyssey question? If so its 5.00•10^-5

Which is the name of C5H12?n-heptane
n-butane
All of these
n-pentane
n-hexane

Answers

pentane is the correct answer the prefix pent means 5 so 5 hydrogens

The relationship between the mass m of a material, its volume V, and its density D is

Answers

D V = m thst should nbe the answer

Final answer:

The question is asking about the mathematical relationship between mass, volume and density in Physics, which is represented by the formula D = m/V; this formula is essential in various physics computations.

Explanation:

The relationship between the mass (m) of a material, its volume (V), and its density (D) is represented by the formula D = m/V. This is a fundamental concept in Physics, specifically in areas involving fluid mechanics and material science. If you know the mass and volume of a material, you calculate its density using this formula, and decipher a lot about the material's properties from the result of this calculation.

Learn more about Density here:

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