Matter Review

Front

What is the mass of an object?

Back

The mass of an object is a measure of the amount of matter it contains, typically measured in grams or kilograms.

Front

How do you calculate the mass of a substance added to a container?

Back

To find the mass of a substance added to a container, subtract the mass of the empty container from the total mass after the substance is added.

Front

What is density?

Back

Density is the mass of a substance divided by its volume, usually expressed in grams per milliliter (g/mL) or kilograms per cubic meter (kg/m³).

Front

How can you determine which substance is the most dense?

Back

To determine which substance is the most dense, compare their masses and volumes; the substance with the highest mass for the same volume is the most dense.

Front

What is a chemical property?

Back

A chemical property is a characteristic of a substance that can only be observed during a chemical reaction, such as reactivity or flammability.

Front

What are physical properties?

Back

Physical properties are characteristics of a substance that can be observed or measured without changing the substance's chemical identity, such as color, texture, and boiling point.

Front

What is the significance of a substance having a density less than 1.0 g/mL?

Back

A substance with a density less than 1.0 g/mL will float in water, while substances with a density greater than 1.0 g/mL will sink.

Front

What is the freezing point of water?

Back

The freezing point of water is 0 degrees Celsius (32 degrees Fahrenheit).

Front

What is the melting point of ice?

Back

The melting point of ice is 0 degrees Celsius (32 degrees Fahrenheit), the same as its freezing point.

Front

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

Back

A physical change alters the form or appearance of a substance without changing its chemical composition, while a chemical change results in the formation of new substances.