Question

Challenge Questions: Balance the equations below.

___ NaNO3 + ___ PbO → ___ Pb(NO3)2 + ___ Na2O

___ Ca3P2 + ___ H2O → ___Ca(OH)2 + ___ PH3

___Fe2O3 + ___ CO → ___Fe + ___ CO2

___NH3 + ___ O2 → ___ NO2 + ___ H2O

___FeS + ___O2 → ___Fe2O3 + ___SO2

___ C3H6O2 + ___ O2 → ___ CO2 + ___ H2O

Answer 1

To balance the chemical equations, the sum of each atom should be equal in both side of the arrow. Hence the answers can be written as;
2NaNO₃ +  PbO → Pb(NO₃)₂+ Na₂O
Ca₃P₂+ 6H₂O → 3Ca(OH)₂ + 2PH₃
Fe₂O₃ + 3CO → 2Fe + 3CO₂
4NH₃ + 7O₂ → 4NO₂ + 6H₂O
4FeS + 7O₂→ 2Fe₂O₃ + 4SO₂
2C₃H₆O₂ + 7O₂ → 6CO₂ + 6H₂O

Answer 2

The balanced equation are as follows:

1. 2NaNO3 + PbO → Pb(NO3)2 + Na2O
2. Ca3P2 + 6H2O → 3Ca(OH)2 + 2PH3
3. Fe2O3 + 3CO → 2Fe + 3CO2
4. 4NH3 + 7O2 → 4NO2 + 6H2O
5. 4FeS + 7O2 → 2Fe2O3 + 4SO2
6. 2C3H6O2 + 7O2 → 6CO2 + 6H2O

BALANCED CHEMICAL EQUATION:

• A balanced equation is an equation in which the number of atoms of each element on both sides of the equation.

• To balance a chemical equation, we make use of coefficients, which are numbers placed in front of elements or compounds.

• The balanced form of the following equations using coefficients are:

1. 2NaNO3 + PbO → Pb(NO3)2 + Na2O
2. Ca3P2 + 6H2O → 3Ca(OH)2 + 2PH3
3. Fe2O3 + 3CO → 2Fe + 3CO2
4. 4NH3 + 7O2 → 4NO2 + 6H2O
5. 4FeS + 7O2 → 2Fe2O3 + 4SO2
6. 2C3H6O2 + 7O2 → 6CO2 + 6H2O

Learn more at: https://brainly.com/question/11322377?referrer=searchResults