Chapter 10 Review

Front

What is a solution?

Back

A solution is a mixture where one substance is completely dissolved in another, and it cannot be separated by physical means.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that keep their original chemical properties.

Front

What is a chemical change?

Back

A chemical change occurs when substances combine or break apart to form new substances, often indicated by bubbles, color change, or heat.

Front

What is a physical change?

Back

A physical change is a change in the form or appearance of a substance without altering its chemical composition.

Front

What is an alloy?

Back

An alloy is a mixture of two or more metals, or a metal and another element.

Front

What happens when a copper penny turns green?

Back

This is an example of a chemical change due to oxidation.

Front

What are settling and filtration used for?

Back

Settling and filtration are methods used to separate mixtures.

Front

What is the air we breathe?

Back

The air is a solution of different gases, primarily nitrogen and oxygen.

Front

What does it mean when bubbles form in a mixture?

Back

The formation of bubbles indicates a chemical change is occurring.

Front

Can a solution be separated?

Back

No, a solution cannot be separated by physical means.