Exploring Chemical Formulas

What is the chemical symbol for Sodium?

• Na

• K

• So

• Ca

What is the chemical symbol for Chlorine?

• Cl

• Cl2

• C1

• Ch

Answer explanation

Chlorine belongs to Group 17. All of group 17 elements are diatonic

Write the formula for the ionic compound formed between Magnesium and Oxygen.

• Mg3O2

• MgO

• MgO2

• Mg2O

Write the formula for the ionic compound formed between Sodium and Sulfate.

• Na3SO4

• Na2S

• NaSO4

• Na2SO4

What is the chemical symbol for Carbon?

• Ca

• Co

• C2

• C

What is the chemical symbol for Nitrogen?

• N

• H

• C

• O

Name the ionic compound formed from Calcium and Fluoride.

• Calcium Fluoride (CaF)

• Calcium Fluoride (CaF3)

• Calcium Fluoride (Ca2F)

• Calcium Fluoride (CaF2)

Write the formula for the covalent compound formed between Hydrogen and Oxygen.

• H2O

• O2H

• H2O2

• H2O3

Name the covalent compound with the formula CO2.

• Carbon Trioxide

• Dicarbon Oxide

• Carbon Monoxide

• Carbon Dioxide

What is the name of the ionic compound NaCl?

• Sodium sulfate

• Sodium bicarbonate

• Sodium phosphate

• Sodium chloride