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Anarel [89]
3 years ago
14

Question 3

Chemistry
1 answer:
igomit [66]3 years ago
4 0

Answer:

1.04 moles

Explanation:

1 mole of MgF2 = 62.301

65.0÷62.301=1.04

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A sample of silver metal contains 1.91 X 1021 atoms. How many moles of silver is<br> this?
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need thanks and make me brainiest if it helps you

6 0
2 years ago
Why is the vapor pressure of a warm pale higher than the vapor pressure of a cold lake
levacccp [35]

The vapor pressure of a warm pale higher than the vapor pressure of a cold lake because Warm water evaporates more quickly.

Hence, Option B is correct answer.

<h3>What is Evaporation ? </h3>

The process in which a liquid or solid is converted into vapour is called Evaporation. When water gains the heat energy then it changes in to gas. When the temperature increases it speeds up the rate of evaporation.

The temperature of warm water increases, the kinetic energy of the warm water molecule also increases.

Thus from the above conclusion we can say that The vapour pressure of a warm lake is higher than the vapor pressure of a cold lake because Warm water evaporates more quickly.

Hence, Option B is correct answer.

Learn more about the Evaporation here: brainly.com/question/9339710

#SPJ1

Disclaimer: The question was given incomplete on the portal. Here is the complete questions.

Question: Why is the vapor pressure of a warm lake higher than the vapor pressure of a cold lake?

A. Warm water has a greater heat of vaporization.

B. Warm water evaporates more quickly.

C. Cool water evaporates more quickly.

D. Cool water has a greater heat of vaporization.

3 0
1 year ago
Could someone please help me??
gizmo_the_mogwai [7]

7.9×10^-1 Kg/m³

or, 0.79 Kg/m³

Hope it helps you...

8 0
3 years ago
Read 2 more answers
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