Physics, 23.10.2019 19:00 sophiaa23

Which of the following is an example of a chemical change?
water changing color when food coloring is added
gas bubbles forming in boiling water
a gas forming when vinegar and baking soda are mixed
balls of wax forming when melted wax is poured into ice water

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Which of the following is an example of a chemical change?
water changing color when food co...