A student adds 1.0 g of magnesium powder to 25 cm325\,\mathrm{cm^{3}}25cm3 samples of three different sulfate solutions. Each solution has the same concentration.
| Solution | Temperature rise (∘C^\circ\mathrm{C}∘C) |
|---|---|
| Copper sulfate | 18.0 |
| Iron sulfate | 9.5 |
| Zinc sulfate | 5.0 |
The student then adds 1.0 g of zinc powder to 25 cm325\,\mathrm{cm^{3}}25cm3 samples of four different sulfate solutions of the same concentration.
Which solution would give the largest temperature rise with zinc?
Magnesium sulfate solution
Zinc sulfate solution
Copper sulfate solution
Iron sulfate solution
60 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.