Sciences Co-ordinated 9-1 0973: C12 - Carbonates Topical Past Paper Questions
Cambridge IGCSE Sciences Co-ordinated 9-1 (0973) past-paper questions on C12 - Carbonates, free. This topic is regularly examined across 13 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
Green copper(II) carbonate is heated. A black powder is formed and a gas is produced which turns limewater cloudy. Which word equation is correct? A copper(II) carbonate → copper + carbon + oxygen B copper(II) carbonate → copper(II) oxide + carbon monoxide C copper(II) carbonate…
(a) The element calcium is represented on the Periodic Table as shown. The symbol for a calcium ion is $ Ca^{2+} $. (i) State the number of protons in this calcium ion. [1] (ii) State the number of electrons the calcium atom loses when it becomes a calcium ion. [1] (b) Calcium ca…
A student investigates the reactivity of metals by heating some metal carbonates. Some metal carbonates break down and release carbon dioxide when they are heated. The carbonate of a more reactive metal takes a longer time to break down than the carbonate of a less reactive metal…
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