Honors Chemistry Sem 1 Final Exam Review

Front

What is the electron configuration for magnesium?

Back

1s² 2s² 2p⁶ 3s²

Front

What is an example of a physical change?

Back

Freezing water

Front

Convert 542000 into proper scientific notation.

Back

5.42 x 10⁵

Front

What is the name for the formula Fe₂O₃?

Back

Iron (III) oxide

Front

What is the definition of a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is the definition of a chemical change?

Back

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

Front

What is the principle of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is the formula for calculating density?

Back

Density = Mass/Volume

Front

What is the pH scale used for?

Back

To measure the acidity or basicity of a solution.

Front

What is the definition of an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.