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Lelechka [254]
3 years ago
8

When you put an ice cube into a glass of room temperature water, why does the water get cold?

Chemistry
1 answer:
mel-nik [20]3 years ago
6 0
The water gets cold because the ice cube is endothermic. Which means it takes in heat. It takes the warmth from the water and melts the ice cube which the ice cube releases coldness which cools down the water.
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A 45 L container holds 28 moles of gas at a temperature of 215 K. What is the pressure
snow_lady [41]

Answer:

The pressure inside the container is 11 atm

Explanation:

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P= 28 mol x 0,082 l atm/K mol x 215 K/45 L

<em>P=10,96977778 atm</em>

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3 years ago
Select the correct answer. How does a catalyst increase the speed of a reaction?
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Answer:

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Explanation:

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How many grams are in 9.97 moles of Be(NO3)2?<br> Use two digits past the decimal for all values.
Simora [160]

Answer:

1,869.97 grams of Be(NO3)2

Explanation:

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