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Which of these is an indication that a chemical reaction has occurred? (boiling of a substance ,freezing of a substance, formation of a gas, melting of a substance)

Which of these is an indication that a chemical reaction has occurred? (boiling of a substance ,freezing of a substance, formation of a gas, melting of a substance)
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Which of these is an indication that a chemical reaction has occurred? (boiling of a substance ,freezing of a substance, formation of a gas, melting of a substance)

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User Donghwan Kim
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1 Answer

2 votes

Answer: the answer is formation of gas

Explanation: i took the qwiz and boliing water is wrong

answered
User Lutogniew
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9.1k points
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