A student places a freshly cleaned copper strip into silver nitrate solution.
After a short time, metallic crystals form on the strip and the copper strip gets smaller.
State the name of the metal that forms the crystals.
Explain why the crystals form on the copper strip.
The student tests another metal, R.
| Test | Observation |
|---|---|
| R added to silver nitrate solution | a metallic coating forms on R |
| R added to copper(II) sulfate solution | no visible change |
Give the order of reactivity of copper, R and silver, from the most reactive to the least reactive.
The student compares the temperature rises when copper powder and powdered R react with silver nitrate solution.
The student keeps the mass of metal, volume and concentration of solution, and starting temperature the same.
State one property of the metal powders that should also be kept the same.
Zinc reacts with dilute sulfuric acid. The symbol equation is incomplete.
Zn + H₂SO₄ → ZnSO₄ + ______
Write the formula of the missing product.
A lit splint is held at the mouth of a test tube containing the gas made in the reaction in part (e).
State the observation.
113 exam-style questions on OCR GCSE Chemistry 4.1 Predicting chemical reactions, covering 4.1.1 Properties and trends in Groups 1, 7 and 0, 4.1.2 Properties of the transition metals, 4.1.3 Reactivity predicted from position in the Periodic Table, and 4.1.4 Reactivity of metals and the reactivity series. Each one has a worked solution and a mark scheme showing where the marks go.