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PIT_PIT [208]
3 years ago
15

When calcium hydroxide is formed, heat is released. Calculate the amount of heat (in kJ) released when 2 moles of calcium hydrox

ide is formed.
CaO(s) + H2O(I) —> Ca(OH)2(s) + 65.2 kJ

A. 32.6 kJ
B. 65.2 kJ
C. 130.4 kJ
D. 4.18 kJ
Chemistry
1 answer:
babunello [35]3 years ago
3 0

Answer:

C

Explanation:

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posledela

Answer:

p=\frac{nRT}{V}

Explanation:

The ideal gas law equation is an equation that relates some of the quantities that describe a gas: pressure, volume and temperature.

The equation is:

pV=nRT

where

p is the pressure of the gas

V is the volume of the gas

n is the number of moles of the gas

R is the gas constant

T is the absolute temperature of the gas (must be expressed in Kelvin)

Here we want to solve the equation isolating p, the pressure of the gas.

We can do that simply by dividing both terms by the volume, V. We find:

p=\frac{nRT}{V}

So, we see that:

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A decrease in pressure has the greatest effect on a solution that contains.. ?
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<h3><u>Answer;</u></h3>

A gas in a liquid

<h3><u>Explanation;</u></h3>
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3 years ago
The average human lives 74 years. how many seconds is this? write your answer in scientific notation
Leviafan [203]

Number of second in human lives in scientific notation is 3.9 × 10⁷ second

<u>Given that;</u>

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<u>Find:</u>

Number of second in human lives in scientific notation

<u>Computation:</u>

Number of second in human lives in scientific notation = 74 × 365 × 24 × 60

Number of second in human lives in scientific notation = 38,894,400

Number of second in human lives in scientific notation = 3.9 × 10⁷ second

Learn more:

brainly.com/question/3712546?referrer=searchResults

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Alla [95]

Answer:  B- Chemical bonds are formed. Energy is released in the form of heat.

Explanation: I hoped that helped !

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Answer:

Endothermic hope that helps

Explanation:

6 0
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