Balancing Chemical Equations Quiz

What is the chemical formula for hydrogen gas?

• H3

• H2

• H4

• H

What does a balanced chemical equation have?

• Different number of atoms on both sides

• Only products and no reactants

• Same number of each type of atom on both sides

• Only reactants and no products

What is the chemical formula for chlorine gas?

• Cl

• Cl3

• Cl4

• Cl2

What is the product of hydrogen gas and chlorine gas?

• H2Cl2

• HCl2

• H2Cl

• HCl

How many hydrogen atoms are there in a molecule of water?

• 1

• 2

• 3

• 4

What is the chemical formula for oxygen gas?

• O

• O2

• O3

• O4

What is the product of hydrogen gas and oxygen gas?

• H2O2

• H2O

• H2O3

• HO2

What is the balanced chemical equation for hydrogen gas and oxygen gas?

• 2H2O -> 2H2 + O2

• H2 + O2 -> H2O

• 2H2 + O2 -> 2H2O

• H2O2 -> H2O + O2

What is the chemical formula for nitrogen gas?

• N4

• N3

• N2

• N

How many hydrogen atoms are there in a molecule of ammonia (NH3)?

• 1

• 2

• 4

• 3