Making salts - Eduqas

1

Which of these substances is a base?

2

Why is sodium chloride not made by reacting sodium with hydrochloric acid?

3

Which type of salt is made from sulfuric acid?

4

What is the name of the salt made by reacting zinc oxide with nitric acid?

5

Why is it important to add copper oxide to sulfuric acid until it is in excess when making copper sulfate?

6

Which process is used to obtain solid zinc chloride from a solution of zinc chloride?

7

What is used in a titration to show when the acid and alkali have exactly reacted together?

8

What name is given to titre values in a titration that are within 0.20 cm3 of each other?

9

In a titration, a student recorded titre values of 21.20 cm3, 21.10 cm3 and 21.60 cm3. What value should the student give as the mean titre?

10

Why is titration used when making a salt from a soluble base?