Question 1
When solid zinc reacts with aqueous copper(II) sulfate, a displacement reaction occurs. Which statement correctly identifies the type of reaction and the observations made?
Worked answer
🔒 Start free to see full answer
Chemistry · Unit 1 · Chemical reactions — reactants, products and energy change · Chemical reactions
types of chemical reactions
Practise this objective
AI-marked practice questions tied to QCAA mark schemes for this exact LO. Free to start.
Start free practicePractice questions for this objective
Full questions, answers and worked solutions unlock when you start a free practice session.
Question 2
A student heats a sample of solid copper(II) carbonate (CuCO₃) in a test tube and observes that a gas is produced and a black solid remains. Identify the type of chemical reaction and write a balanced equation for the reaction.
Worked answer
🔒 Start free to see full answer
Question 3
Identify the type of reaction shown in the equation.
Worked answer
🔒 Start free to see full answer