19.
Epsom salts was a favourite medicine of our grandparents. Its chemical name is magnesium
sulphate.
(a) Write down the formula of magnesium sulphate.
Salts can be made in a number of ways.
I adding a metal to an acid
II adding a oxide to an acid
III adding a hydroxide to an acid
(b) For each of the methods above, give the correct chemical name of two substances which could
be mixed to make magnesium sulphate.
method i
method II.
method III
(c) In each case the magnesium sulphate is formed as a solution in water. What would you need
to do to produce solid magnesium sulphate?
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Answer:
mg + so4 = mgso4
formula
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