Types of Solutions and Their Properties

Front

What are pure substances?

Back

Pure substances are materials that have a uniform and definite composition.

Front

What is a mixture?

Back

A mixture is a combination of two or more pure substances.

Front

What determines the utility or importance of a mixture?

Back

The utility or importance of a mixture depends on its composition.

Front

What is brass?

Back

Brass is a mixture of copper and zinc.

Front

What is German silver?

Back

German silver is a mixture of copper, zinc, and nickel.

Front

What is bronze?

Back

Bronze is a mixture of copper and tin.

Front

What is the effect of 1 part per million (ppm) of fluoride ions in water?

Back

1 ppm of fluoride ions in water prevents tooth decay.

Front

What happens at 1.5 ppm of fluoride ions in water?

Back

1.5 ppm causes the tooth to become mottled.

Front

What can high concentrations of fluoride ions be?

Back

High concentrations of fluoride ions can be poisonous.

Front

What is sodium fluoride used for?

Back

Sodium fluoride is used in rat poison.