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fomenos
3 years ago
13

When Is Mechanical Energy Not Conserved?

Chemistry
1 answer:
dem82 [27]3 years ago
3 0

Answer:

i think d

Explanation:

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What is possible reason for trial b not obeying the law of conservation of mass
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The combustion of propane (C3H8) produces CO₂ and H₂O:
fomenos

Answer:

4.4 moles of water

Explanation:

Propane is C3H8. Is the chemical equation, you wrote C2H8 which is wrong. Type everything properly and give a check before finally posting the question.

The chemical equation that is given, is not properly balanced. The BALANCED equation would be

C3H8 + 5O2 → 3CO2 + 4H2O

From this balanced chemical equation, we see that 5 moles of oxygen produce 4 moles of water.

5 moles of Oxygen → 4 moles of water

1mole of oxygen → \frac{4}{5} moles of water

5.5 moles of oxygen → (\frac{4}{5} × 5.5) moles of water = 4.4 moles of water

∴ The reaction of 5.5 mol of O2 will produce <u>4.4</u> mol of H2O. [Answer:]

5 0
2 years ago
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