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devlian [24]
3 years ago
7

Which statement supports one of Dalton's contributions to the atomic theory?

Chemistry
2 answers:
Mnenie [13.5K]3 years ago
6 0
<span>C) The element nitrogen is made up of carbon and nitrogen</span>
Readme [11.4K]3 years ago
4 0
The right answer is B)
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In the reaction
NemiM [27]

Answer:

3 moles of CO are needed

Explanation:

Given data:

Number of moles of CO used = ?

Mass of Fe produced = 112 g

Solution:

Chemical equation:

Fe₂O₃ + 3CO      →        2Fe + 3CO₂

Number of moles of Fe:

Number of moles = mass/ molar mass

Number of moles = 112 g/ 55.85 g/mol

Number of moles = 2.00 mol

Now we will compare the moles of iron and CO.

                   Fe        :         CO

                   2          :         3

Thus, 3 moles of CO are needed.

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Explanation:

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Answer:

Nonmetal...

Explanation:

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6 0
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These planets are Mercury and Venus

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