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HACTEHA [7]
3 years ago
7

When a substance burns, a chemical reaction is taking place. True False

Chemistry
2 answers:
zvonat [6]3 years ago
4 0

Answer:

True

Explanation:

Hitman42 [59]3 years ago
3 0

true

hope this helped bud :)

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calculate the number of moles of gas that occupy a 3.45L container at a pressure of 1.48 atm and a temperature of 45.6 Celsius ​
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Answer:

There are 0,2 moles of gas that ocuppy the container.

Explanation:

We apply the formula of the ideal gases, we clear n (number of moles); we use the ideal gas constant R = 0.082 l atm / K mol. Firs we convert the unit of temperature in Celsius into Kelvin:

0°C= 273 K ------> 45,6 °C= 273 + 45, 6= 318, 6 K

PV= nRT ---> n= PV/RT

n= 1,48 atm x 3,45 L /0.082 l atm / K mol x 318,6 K

n= 0,195443479 mol

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Dovator [93]

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Explanation:

8 0
3 years ago
Answer this, please!!!!!!!!!!
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It's C

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