The students determined that a new substance formed and a chemical reaction took place. Which pieces of evidence from their observations best support this conclusion?
Group of answer choices
substance dissolves, precipitate forms, color changes
color changes, temperature changes, precipitate forms
state change occurs, gas is released, substance dissolves
temperature changes, production of a gas, color changes
Answers: 2
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The students determined that a new substance formed and a chemical reaction took place. Which pieces...
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