Page 105 - Science Coursebook

7 End of unit questions

7.4 a Give two properties of acids. [2]
b What is a base? Give one example of a base. [2]
c What is an alkali? Give one example of an alkali. [2]

7.5 Carmel is making crystals of the salt potassium chloride by neutralisation.
The diagram shows some of her apparatus set up ready to use.

a Copy the diagram and complete the labels.

A

C

B

D

[4]
b How will Carmel be able to tell when she has a neutral solution? [2]
c Describe how she can obtain crystals of the salt. [3]
d List the safety measures she should take to stay safe while she carries out
her experiment. [3]

7 Salts 103