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15 questions
Sodium bicarbonate and acetic acid combine to make carbon dioxide
Which of the following are examples of a Chemical Change?
Iron Rusting
Gas Burning
Breaking a glass
Boiling water
Burning Wood
Sugar dissolves in water
Salt dissolves in water
Burning steel wool
A physical change _____________ the identity of the substance.
changes
maintains
A chemical change _____________ the identity of the substance.
changes
maintains
Color change like in a drop of food coloring in water, is a _________ change.
physical
chemical
Copper tarnishing (rusting) is an example of a ___________ change.
physical
chemical
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