Chemistry Review

Front

What is a Pure Substance?

Back

A Pure Substance is a type of element, molecule, or compound that has a uniform and definite composition.

Front

What is a Mixture?

Back

A Mixture is a combination of two or more substances that retain their individual properties and can be separated by physical means.

Front

What is the process called when a solid becomes a liquid?

Back

Melting is the process where a solid turns into a liquid.

Front

What is an example of a Heterogeneous Mixture?

Back

Salad is an example of a Heterogeneous Mixture, where the components are not uniformly distributed.

Front

What is an example of a Homogeneous Mixture?

Back

Tomato soup is an example of a Homogeneous Mixture, where the components are uniformly mixed.

Front

What is Boiling?

Back

Boiling is the process where a liquid turns into vapor when it reaches its boiling point.

Front

What is Freezing?

Back

Freezing is the process where a liquid turns into a solid when its temperature is lowered.

Front

What is the difference between a Compound and a Mixture?

Back

A Compound is a substance formed when two or more elements chemically bond, while a Mixture is a physical combination of substances.

Front

What is a Chemical Change?

Back

A Chemical Change is a process where substances combine or break apart to form new substances.

Front

What is 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.