7.6 A,B,C.D.E REVIEW

Front

Is Iron (Fe) an element or a compound?

Back

Iron (Fe) is an element.

Front

What is the difference in dissolving time between a sugar cube and a teaspoon of granular sugar?

Back

The teaspoon of granular sugar dissolves faster.

Front

What happens to the solubility of a gas in a liquid when the temperature increases?

Back

The solubility of a gas in a liquid decreases when the temperature increases.

Front

Which of the following processes is a physical change?

Back

Melting ice is a physical change.

Front

Which of the following is an example of a solvent in an aqueous solution?

Back

Water is an example of a solvent in an aqueous solution.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together.

Front

What is solubility?

Back

Solubility is the ability of a substance to dissolve in a solvent at a given temperature and pressure.

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.

Front

What is a chemical change?

Back

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