The starter and exit quiz of the lesson “Balancing equations”, from the unit “Calculations involving masses” (Year 10 Science) by Oak National Academy.
Free to use. Edit it, share it and hand it out to your students.
Oak National Academy
12 questions
What elements are present in CaCO₃ and how many atoms are there of each?
Match the substance names and symbol formulae.
Match the substance to the correct state symbol.
The chemical formula for magnesium oxide is MgO. In a chemical symbol equation, how would you amend this to provide twice as many Mg and O particles?
When 12.2 g of iron reacted with an unknown mass of sulfur, 20.6 g of a product was formed. What was the mass of the sulfur?
Which symbol equation is correct for when bromine displaces iodine from sodium iodide solution?
What does a chemical formula like Na₂O represent?
Match the terms to the correct definitions.
Starting with identifying the reactants and products chemical formulae, sort the steps to describe how to balance an equation.
A coefficient is the number placed in front of a chemical formula to balance an equation; it ___ all the atoms in the formula and shows the ratio of substances in a reaction.
Determine which reactions are balanced.
Select the correct balanced equation for when propane (C₃H₈) completely combusts to form carbon dioxide and steam.
