LS Topic 4 Study Guide

Front

What is a physical change?

Back

A change in the size, shape, or state of matter that does not alter the chemical composition of the substance.

Front

What is a chemical change?

Back

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

Front

What is the substance present in the largest amount in a solution called?

Back

Solvent.

Front

What is a solute?

Back

The substance that is dissolved in a solution.

Front

What are colloids?

Back

Mixtures where larger particles are suspended in a liquid or gas, having properties between solutions and suspensions.

Front

What is the difference between a solution and a colloid?

Back

Solutions have particles that are too small to be seen and do not settle, while colloids have larger particles that can scatter light.

Front

What are the properties of suspensions?

Back

Suspensions contain larger particles that can settle over time and can be separated by filtration.

Front

What are synthetic materials?

Back

Materials made from chemically processing natural resources.

Front

What is an example of a physical change?

Back

Melting ice into water.

Front

What is an example of a chemical change?

Back

Burning wood.