It would 3 because if you read it tells you the answer
8.................................
2Al +3CuSO4=Al2 (SO4)3+3Cu.
is the balanced equation.
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Mention four reasons why the poll ordinance failed
Answer:
Oxygen is in group 16/VIA, which is called the chalcogens, and members of the same group have similar properties. Sulfur and selenium are the next two elements in the group, and they react with hydrogen gas (H2) in a manner similar to oxygen.
Explanation:
