Core 7.1 Balancing Equations

On which side of the reaction is the Reactant located?

• Left side of the arrow

• Right side of the arrow

Choose the correct coefficients to balance the equation below.

___ CaCl₂ + ___ Na₃PO₄ → ___ Ca₃(PO₄)₂ + ___ NaCl

• 3, 1, 2, 6

• 2, 1, 6, 3

• 3, 2, 1, 6

• 1, 2, 3, 3

Choose the correct coefficients to balance the equation below.

___ Mg(OH)₂ + ___ HCl → ___ MgCl₂ + ___ H₂O

• 1, 2, 1, 2

• 2, 1, 2, 1

• 1, 4, 1, 2

• 1, 1, 4, 2

Choose the correct coefficients to balance the equation below.

___ Na₃PO₄ + ___ HCl → ___ NaCl + ___ H₃PO₄

• 3, 3, 3, 1

• 1, 3, 3, 3

• 1, 3, 1, 1

• 1, 3, 3, 1

Choose the correct coefficients to balance the equation below.

___ C₂H₆O + ___ O₂ → ___ CO₂ + ___ H₂O

• 1, 3, 3, 3

• 1, 3, 2, 3

• 1, 2, 2, 3

• 2, 1, 2, 3

Choose the correct coefficients to balance the equation below.

___ Ba₃N₂ + ___ H₂O → ___ Ba(OH)₂ + ___ NH₃

• 1, 1, 3, 2

• 1, 2, 3, 6

• 1, 6, 3, 2

• 1, 2, 3, 2