DK: Review Chemical & Physical Changes

Front

What is solubility?

Back

Solubility is the ability of a substance to dissolve in a liquid.

Front

What type of change occurs when dynamite explodes?

Back

A chemical change occurs when dynamite explodes to form a mixture of gases.

Front

Is sour taste a chemical or physical property?

Back

Sour taste is a physical property.

Front

Which liquid is the least dense: oil, water, syrup, or plastic bottle?

Back

Oil is the least dense liquid.

Front

Is flammability (burns) a chemical or physical property?

Back

Flammability is a chemical property.

Front

Define a physical change.

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

Define a chemical change.

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

What is an example of a chemical change?

Back

Rusting of iron is an example of a chemical change.

Front

What is the difference between a physical property and a chemical property?

Back

A physical property can be observed without changing the substance's identity, while a chemical property can only be observed during a chemical reaction.