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OleMash [197]
3 years ago
14

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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What is the percent composition by mass of nitrogen in the compound N2H4 (gram-formula mass = 32 g/mol)?
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\large \boxed{93\, \% }

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