Mod Last Chemistry test study guide

Front

Atoms that gain electrons become...

Back

negatively charged

Front

How many Significant Figures in the number 0.456?

Back

3

Front

What formula results when Ca ions and Br ions bond?

Back

CaBr₂

Front

Convert 75.0 cm to meters.

Back

0.75

Front

Convert 0.05 L to milliliters.

Back

50

Front

What is the charge of an ion that loses electrons?

Back

positively charged

Front

Define significant figures.

Back

The digits in a number that contribute to its precision.

Front

What is the formula for calculating density?

Back

Density = Mass/Volume

Front

What is the SI unit for mass?

Back

Kilogram (kg)

Front

What is the pH scale used for?

Back

To measure the acidity or basicity of a solution.