Foundations of Chemistry

Identify what’s happening in the picture below as a chemical or physical change.

A statue damaged by acid rain is a chemical change.

The smallest particle of an element is call a(n)

Identify what’s happening in the picture below as a chemical or physical change.

To get salt out of a solution (separating salt from water) we could try.....

What type of change is happening in the image below?

Drying wet hair is an example of a _________ change.

The simplest, purest substances that cannot be broken down into any other substances are called

Made of two or more substances that are chemically combined in a specific ratio.

Properties that describe how a substance looks, feels, state of matter, etc. are?

Does the following represent a chemical or physical change?

Identify what’s happening in the picture below as a chemical or physical change.

Evaporation means going from a liquid to a ____________ physical state.

During a chemical change, the ______________ of the substance changes.

When iron is exposed to water vapor and air, it rusts. This is an example of a ________ change.

Carbon, hydrogen, oxygen, nitrogen, iron, sodium and chlorine are examples of

Which of the following is an example of a physical change?

Why is the below picture an example of a physical change?

Properties that describe how a substance reacts with other substances are called?

In a solution, the smallest amount of a substance in the solution is called the

Which one of the materials listed is a mixture?

Dissolving is an example of this type of change.

In a solution, the largest amount of a substance in the solution is called the ________.

Select the compound!

Methods used to separate mixtures are based on the ____ properties of the parts of the mixture.

How many elements are in the compound sodium chloride or salt?

Which of the following is NOT a mixture?

Does the following represent a chemical or physical change?

What does a chemical change result in?

Two or more substances combined together, but not chemically combined are known as a

Which type of change is most often easily reversed?

A mixture that is uniform (the same) throughout, is referred to as a

Does the following represent a chemical or physical change?

Does the following represent a chemical or physical change?

Matter is anything that has weight and takes up space.

Water, ammonia, sodium chloride, iron oxide and carbon dioxide are examples of

A mixture that is NOT uniform (the same) throughout, is referred to as a

Chemistry is the study of properties, structure, and...

To get  iron filings out of sand, what method could he use to separate these two solids?