Balancing Chemical Equations
Chemistry ⇒ Chemical Reactions and Equations
Balancing Chemical Equations starts at 9 and continues till grade 12.
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See sample questions for grade 10
A student writes the equation: 2Mg + O2 → 2MgO. How many oxygen atoms are present on each side of the equation?
Balance the following equation: AgNO3 + Cu → Cu(NO3)2 + Ag
Balance the following equation: Al + HCl → AlCl3 + H2
Balance the following equation: C2H6 + O2 → CO2 + H2O
Balance the following equation: C3H8 + O2 → CO2 + H2O
Balance the following equation: Ca(OH)2 + H3PO4 → Ca3(PO4)2 + H2O
Balance the following equation: Fe + O2 → Fe2O3
Balance the following equation: H2SO4 + NaOH → Na2SO4 + H2O
Balance the following equation: KClO3 → KCl + O2
Balance the following equation: Na + H2O → NaOH + H2
Balance the following equation: NH3 + O2 → NO + H2O
Balance the following equation: Pb(NO3)2 + KI → PbI2 + KNO3
Balance the following equation: SO2 + O2 → SO3
Explain the difference between a skeleton equation and a balanced chemical equation.
Explain the importance of balancing chemical equations in chemical reactions.
Explain why it is incorrect to balance a chemical equation by changing the subscripts in chemical formulas.
