Practice 1

Listed below are the chemical formulas for some everyday substances. For each of the substances, enter the names and numbers of the elements found in the compound. The first one has been done for you. If you do not have a periodic table, you can click below to access one.

Periodic Table (on page 2)

Interactive exercise. Assistance may be required.

Practice 2

Listed below are the names and ratios of some everyday substances. Determine what the correct chemical formula should be and drag it to the correct box.