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rusak2 [61]
3 years ago
6

Which Venn diagram most accurately compares and contrasts plant and animal cells?

Chemistry
2 answers:
Cloud [144]3 years ago
8 0

I'm pretty sure its the first one

Explanation:

klemol [59]3 years ago
7 0

Answer:

The first one

Explanation:

I just used process of elimination. Both plant and animal cells have DNA, and that's only the first and third one. Then when you look at the third one, it says that plants don't have cytoplasm, which they do. So it has to be the first one.

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zmey [24]

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.

Moles of H_{2} = \frac{9.14}{2}\\= 4.57 mol

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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