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Basile [38]
4 years ago
7

What are the four observations that confirm that a chemical reaction is happening?

Chemistry
1 answer:
zavuch27 [327]4 years ago
7 0
1.) Precipitate is formed 
<span>2.) Odour </span>
<span>3.) Heat is emitted ( change in temperature) </span>
<span>4.) Formation of a Gas</span>
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