Physical vs Chemical Changes Practice

Front

Identify the following as a physical or chemical change: Sodium hydroxide dissolves in water.

Back

physical change

Front

Identify the following as a physical or chemical change: Hydrochloric acid reacts with potassium hydroxide to produce a salt, water and heat.

Back

chemical change

Front

Identify the following as a physical or chemical change: A pellet of sodium is sliced in two.

Back

physical change

Front

Identify the following as a physical or chemical change: Water is heated and changed to steam.

Back

physical change

Front

Identify the following as a physical or chemical change: Potassium chlorate decomposes to potassium chloride and oxygen gas.

Back

chemical change

Front

Identify the following as a physical or chemical change: iron rusts

Back

chemical change

Front

Identify the following as a physical or chemical change: When placed in H₂O, a sodium pellet catches on fire as hydrogen is liberated and sodium hydroxide forms.

Back

chemical change

Front

Identify the following as a physical or chemical change: evaporation

Back

physical change

Front

Identify the following as a physical or chemical change: ice melting

Back

physical change

Front

Identify the following as a physical or chemical change: milk sours

Back

chemical change