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pochemuha
3 years ago
8

HELPPP ASAP

Chemistry
2 answers:
never [62]3 years ago
8 0

Answer:

I think the awnser is B proteins

Explanation:

I could be wrong but this is off preveous knowleadge.

Sindrei [870]3 years ago
5 0
It would probably be B
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Propane is often used to heat homes. The combustion of propane follows the following reaction: C3H8(g) + 5O2(g)  3CO2 (g) + 4H
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To release 7563 kJ of heat, we need to burn 163.17 grams of propane

Explanation:

<u>Step 1</u>: Data given

C3H8 + 5O2 -----------> 3CO2 + 4H2O      ΔH° = –2044 kJ

This means every mole C3H8

Every mole of C3H8 produces 2044 kJ of heat when it burns (ΔH° is negative because it's an exothermic reaction)

<u>Step 2: </u>Calculate the number of moles to produce 7563 kJ of heat

1 mol = 2044 kJ

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x = 7563/2044 =  3.70 moles

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Mass propane = moles * Molar mass

Mass propane = 3.70 moles * 44.1 g/mol

Mass propane = 163.17 grams

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