State three pieces of information that a balanced chemical equation gives, and two that it does not.
The Language of Chemistry
Original Khojo Papers practice question — not from a past board paper.
2KClO3 → 2KCl + 3O2
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Two formula units of potassium chlorate give six oxygen atoms, which form three molecules of oxygen.
From the same topic and chapter, at a similar level.
State three pieces of information that a balanced chemical equation gives, and two that it does not.
The Language of Chemistry
Why must a chemical equation be balanced?
The Language of Chemistry
Balance the equation: Al + H2SO4 → Al2(SO4)3 + H2
The Language of Chemistry
Balance the equation: Fe2O3 + CO → Fe + CO2
The Language of Chemistry
What is a chemical formula? State what the formula H2SO4 tells you.
The Language of Chemistry
Write the formulae of calcium carbonate, aluminium sulphate and ammonium chloride.
The Language of Chemistry