Challenge questions: balance the equations below. nano3 + pbo → pb(no3)2 + na2o ca3p2 + h2o → (oh)2 + ph3 + co → + co2 + o2 → no2 + h2o + → +c3h6o2 + o2 → co2 + h2o

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

The balanced equation are as follows:

2NaNO3 + PbO → Pb(NO3)2 + Na2OCa3P2 + 6H2O → 3Ca(OH)2 + 2PH3Fe2O3 + 3CO → 2Fe + 3CO24NH3 + 7O2 → 4NO2 + 6H2O4FeS + 7O2 → 2Fe2O3 + 4SO22C3H6O2 + 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: 2NaNO3 + PbO → Pb(NO3)2 + Na2OCa3P2 + 6H2O → 3Ca(OH)2 + 2PH3Fe2O3 + 3CO → 2Fe + 3CO24NH3 + 7O2 → 4NO2 + 6H2O4FeS + 7O2 → 2Fe2O3 + 4SO22C3H6O2 + 7O2 → 6CO2 + 6H2O

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The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. they bind protons and neutrons (“nucleons”) into atomic