Physcal vs chemical properties and changes

Front

Sodium hydroxide dissolves in water.

Back

physical change

Front

What type of reaction occurs when hydrochloric acid reacts with potassium hydroxide to produce a salt, water, and heat?

Back

chemical change

Front

A pellet of sodium is sliced in two.

Back

physical change

Front

Water is heated and changed to steam.

Back

physical change

Front

Potassium chlorate decomposes to potassium chloride and oxygen gas. What type of change is this?

Back

chemical change

Front

Iron rusts. Classify this as a physical property, physical change, chemical property, or chemical change.

Back

chemical change

Front

When placed in water, a sodium pellet catches on fire as hydrogen gas is liberated and sodium hydroxide forms.

Back

chemical change

Front

Evaporation: Classify as physical property, physical change, chemical property, or chemical change.

Back

physical change

Front

Ice melting: physical property, physical change, chemical property, chemical change

Back

physical change

Front

Milk sours: physical property, physical change, chemical property, chemical change

Back

chemical change