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 11
A student balances the equation: H2 + Cl2 → 2HCl. How many molecules of H2 are needed to react with 4 molecules of Cl2?
A student writes the following unbalanced equation: Na + H2O → NaOH + H2. What are the correct coefficients to balance this equation?
Balance the following equation: Fe + H2SO4 → Fe2(SO4)3 + H2
Describe the steps you would take to balance a chemical equation.
Explain why balancing chemical equations is important in chemical reactions.
Explain why it is incorrect to balance a chemical equation by changing the subscripts in chemical formulas.
What is the coefficient of O2 when the equation C2H6 + O2 → CO2 + H2O is balanced?
