balancing chemical equations

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6 questions
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1

Why is it important to balance chemical equations?

1

Which of these reactions are correctly balanced?

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What is the balance of this chemical equation? H2 + O2 -> H2O

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The balancing of a chemical equation involves only changing the coefficients (numbers before elements/compounds), not the subscripts.

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It is possible to balance a chemical equation by changing the chemical symbols of the elements involved.

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The principle of conservation of mass states that no atoms are lost or created during a chemical reaction, hence they must be balanced on both sides of a chemical equation.