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3 years ago

8

7. What type of energy is contained in the matches within a matchbook?

1 answer:

Advocard [28]3 years ago

6 0

Answer: A matchbook contains potential energy; just as a large stone at the top of a hill receives a little push, and the energy released as it travels downward, so a match when it is struck releases its stored, Potential energy as a flame. Potential Energy is the correct answer.

Explanation:

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4 years ago

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When 0.105 mol propane, C3H8 is burned in an excess of oxygen, how many moles of oxygen are consumed? The products are carbon di

torisob [31]

<u>Answer:</u> The amount of oxygen gas consumed is 0.525 moles

<u>Explanation:</u>

We are given:

Moles of propane burned = 0.150 moles

The chemical equation for the combustion of propane follows:

$C_3H_8+5O_2\rightarrow 3CO_2+4H_2O$

By Stoichiometry of the reaction:

1 mole of propane reacts with 5 moles of oxygen gas

So, 0.150 moles of propane will react with = $\frac{5}{1}\times 0.105=0.525mol$ of oxygen gas

Hence, the amount of oxygen gas consumed is 0.525 moles

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3 years ago

If I have 2 moles of apple, how many apples do I have?

Zielflug [23.3K]

Answer

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Explanation:

1 mole = 12 apples

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3 years ago

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