3 years ago

Which of the following will result in a chemical change?

Chemistry

1 answer:

Zarrin [17]3 years ago

5 0

The answer would be C. because if you burn coal can you get the same piece of coal back?

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The chemical equation shows the production of magnesium chloride.

Norma-Jean [14]

Answer:

1 gram of H2 will be produced from 12 grams of Mg.

Explanation:

According to Stoichiometry, 0.5 moles of Mg are present. 1 mole of Mg produces 1 mole of H2, so 0.5 moles of Mg will produce 0.5 moles of H2. Multiplying molar mass of H2 i.e. 2 gram/mole with 0.5 moles, we can find the mass of H2 in grams which is 1 gram.

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3 years ago

What is the correct order of coefficients to balance this equation?

11Alexandr11 [23.1K]

Answer:

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Explanation:

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2 years ago

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