Which of the following is a sign a chemical reaction has occurred?
Options
A) A blue liquid...
Chemistry, 19.08.2020 18:01 willijav000
Which of the following is a sign a chemical reaction has occurred?
Options
A) A blue liquid is mixed into a yellow liquid, and the mixture turns green.
B) A piece of metal is placed in water and produces sparks and gas.
C) A liquid is heated in a hot plate, and bubbles form.
D) A solid powder is mixed into a liquid and disappears
Answers: 3
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