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Cloud [144]
3 years ago
9

In a chemical reaction , atoms are created/rearranged. The atom are joined together in the same/different arrangements after the

reaction. The total number of each type of atom is greater/less/The same after the reaction.
Choose the correct word from the slahs
Chemistry
1 answer:
Paul [167]3 years ago
4 0

Answer:

I think these are the answers:

Explanation:

created/rearranged

same/different

greater/less/same

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Answer: Moles of hydrogen required are 4.57 moles to make 146.6 grams of methane, CH_{4}.

Explanation:

Given: Mass of methane = 146.6 g

As moles is the mass of a substance divided by its molar mass. So, moles of methane (molar mass = 16.04 g/mol) are calculated as follows.

Moles = \frac{mass}{molar mass}\\= \frac{146.6 g}{16.04 g/mol}\\= 9.14 mol

The given reaction equation is as follows.

C + 2H_{2} \rightarrow CH_{4}

This shows that 2 moles of hydrogen gives 1 mole of methane. Hence, moles of hydrogen required to form 9.14 moles of methane is as follows.

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Thus, we can conclude that moles of hydrogen required are 4.57 moles to make 146.6 grams of methane, CH_{4}.

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