Chemistry, 28.07.2019 02:00 skykopystecky795

Which one of these is an example of a physical change? a. sugar dissolving in warm water. b. iron rusting in the presence of moist air. c. wood burning in the presence of oxygen. d. baking soda reacting with acid to form with acid to form a gas.

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Which one of these is an example of a physical change? a. sugar dissolving in warm water. b. iron ru...