18.
Astudent added sulfuric acid to solid copper(II) carbonate in a small beaker. Effervescence
has stopped, the resulting solution was blue and it was found that it contained copper
occurred and a gas which turned lime water milky is released. After the
effervescence
(II) sulfate dissolved in water.
sulfuric acid
copper (II) carbonate
effervescence of gas
resulting blue solution
a)
b)
c)
Work out the formulae of copper (II) carbonate and copper (II) sulfate.
Which gas is produced in this reaction?
Is the change which occurred above a chemical change or a physical change
Justify your answer.
d)
Identify the reactants and the products in this reaction.
e)
Write a word equation for this reaction.
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