Unit Test Answers

Use the periodic table to select the chemical symbol for each element.The symbol for carbon is

Which of the following happens during a chemical change? Check all of the boxes that apply.

Select the description of each substance given by each chemical formula. One molecule of O2 is made of

The symbol for hydrogen is

The compound Al2O3 is made of

The symbol for nitrogen is

The compound KOH is called

The symbol for iron is

The symbol for copper is