Science Combined 0653: C4. Stoichiometry Topical Past Paper Questions
Cambridge IGCSE Science Combined (0653) past-paper questions on C4. Stoichiometry, free. This topic is regularly examined across 26 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A student investigates solid zinc carbonate. When heated, zinc carbonate breaks down to make zinc oxide and carbon dioxide gas. ## Procedure The student: step 1 records in Table 3.1 the mass of a clean dry test-tube $M_{1}$ step 2 adds solid zinc carbonate to the test-tube step 3…
A student determines the percentage by mass of copper in copper oxide. When heated, copper oxide reacts with methane gas to make copper, water and carbon dioxide. ## (a) Procedure The student: step 1 measures the mass of an empty dish step 2 puts some copper oxide into the dish s…
A student investigates a white solid, solid H. ## Procedure The student: step 1 measures the mass of an empty test-tube and records the value in Table 3.1 step 2 places some solid H into the test-tube step 3 measures the total mass of the test-tube and solid H and records the val…
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