Dilute Sulphric acid was added to compound of magnesium P. The solid reacted with the acid to form a colourless solution Q and a colourless gas R which formed a
white precipitate when bubbled through lime water.
a) Name
i)
Compound P
(1mk)
ii)
Solution Q
(1mk)
iii)
Colourless gas R
(1mk)

Select the correct answer. why are scientific models important in the study of science? a. they always involve critical mathematical calculations. b. they scientists understand complex ideas and objects that aren’t easy to handle. c. they enable scientists to popularize their work in society. d. they are required when conducting any peer review process. e. they are necessary for turning a hypothesis into a law.