Physical and Chemical Properties of Matter

Front

What is flammability?

Back

Flammability is the ability of a substance to burn, and it is a chemical property.

Front

Why does oil float on water?

Back

Oil floats on water because it is less dense than water.

Front

What property should be looked for in a material that transfers heat efficiently?

Back

Thermal conductivity is the property that indicates how well a material can transfer heat.

Front

How does the density of a substance behave with different sample sizes?

Back

The density of a substance stays the same no matter the size of the sample.

Front

What type of properties can only be recognized when substances react or do not react chemically?

Back

These are called chemical properties.

Front

What is a physical property?

Back

A physical property is a characteristic of a substance that can be observed or measured without changing its identity.

Front

Give an example of a chemical property.

Back

An example of a chemical property is reactivity with acid.

Front

What is the definition of density?

Back

Density is the mass of a substance divided by its volume.

Front

What happens to the boiling point of a substance at higher altitudes?

Back

The boiling point of a substance decreases at higher altitudes due to lower atmospheric pressure.

Front

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

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.