A student has a solution of hydrochloric acid, HCl\text{HCl}HCl, and a solution of potassium hydroxide, KOH\text{KOH}KOH. She wants to make a pure, dry sample of potassium chloride.
Describe how she can do this. Include the apparatus she should use and her method.
Write a balanced symbol equation for the reaction.
The student also investigates other reactions. The table below shows the salts she can make from different starting materials. Complete the table by identifying the missing entries.
| Acid used | Other starting material | Salt made |
|---|---|---|
| Nitric acid | Copper oxide | (i) ________________\text{\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_}________________ |
| (ii) ________________\text{\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_}________________ | Zinc carbonate | Zinc sulfate |
| Hydrochloric acid | (iii) ________________\text{\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_}________________ | Calcium chloride |
What type of reaction happens when nitric acid reacts with copper oxide?
41 exam-style questions on OCR GCSE Chemistry Predicting chemical reactions. Each one has a worked solution and a mark scheme showing where the marks go.