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swat32
3 years ago
15

Magnesium reacts with carbon dioxide to form magnesium oxide and pure solid carbon.

Chemistry
1 answer:
guajiro [1.7K]3 years ago
7 0

Answer:

2Mg  + 2CO₂  →  2MgO  + C

Option a.

Explanation:

The chemical reactions are balanced in order to verify compliance with the Law of conservation of mass. This law states that in any chemical reaction, the mass of the reagents must be equal to the mass of the products

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How many moles of water are produced if 5.43 mol PbO2 are consumed?<br><br> ANSWER: 10.9
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Answer: 10.9 mol.

Explanation:

  • To understand how to solve this problem, we must mention the reaction equation where water produced from PbO₂.

Pb + PbO₂ + 2H₂SO₄ → 2PbSO₄ + 2H₂O

  • Now, it is a stichiometric oriented problem, that 1 mole of PbO₂ produces 2 moles of H₂O.

Using cross multiplication:

1.0 mole of PbO₂ → 2.0 moles of H₂O

5.43 moles of PbO₂ → ??? moles of water

The moles of water produced = (5.43 x 2.0) = 10.86 moles ≅ 10.9 moles.

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Methane (CH4) burns in oxygen to produce carbon dioxide and water. Which reaction is occurring here?
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What is the answer to this question
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How will you separate a solution of benzene and chloroform?
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Answer:

\huge\boxed{\sf Distillation}

Explanation:

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Since, both of the chemicals are liquids, we can separate it by the process of distillation.

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Since chloroform has less boiling point, it will evaporate and collected first and benzene will follow it after sometime.

- Apparatus of distillation is in the attached file.

\rule[225]{225}{2}

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