#66 Chemical and Physical Changes and Properties

Front

Which of the following is a chemical property? Color, Boiling point, Reactivity with vinegar, Density

Back

Reactivity with vinegar

Front

Boiling water is an example of a:

Back

Physical change

Front

Which of the following is an example of a physical property? Flammability, Melting point, Ability to rust, Reactivity with acid

Back

Melting point

Front

Burning wood is an example of a:

Back

Chemical change

Front

In an exothermic reaction, energy is:

Back

Released into the surroundings

Front

Which of the following is an example of an endothermic reaction? Combustion of gasoline, Ice melting, Explosion of fireworks, Burning of coal

Back

Ice melting

Front

The substances that are present before a chemical reaction takes place are known as:

Back

Reactants

Front

Dissolving sugar in water is an example of a:

Back

Physical change

Front

Which of the following is a chemical change?

• Freezing water
• Dissolving salt in water
• Rusting of iron
• Cutting paper

Back

Rusting of iron

Front

An exothermic reaction is characterized by:

Back

An increase in temperature