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Answer the following questions:
Answer variants:
Fermentation of enzyme
\(2H_2\) + \(O_2\) → \(2H_2O\)
Law of conservation of mass.
Fermentation of fruit juice
1. Name and state the law which is kept in mind when we balance chemical equations.
2. Which one is a chemical change: fermentation of fruit juice or diluting fruit juice?
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