balancing chemical equations:
CuSO4 + AL --- Al2 (SO4) 3 +Cu

Question

balancing chemical equations:
CuSO4 + AL ---> Al2 (SO4) 3 +Cu

zale101 · Answer

what's your attempts on your question? 
Hint: There are more of Al and SO4 in the product then in the reactants, what can you do to balance them out? Al has only one in the reactant but 2 of them in the product, SO4 has 1 in the reactant and 3 in the product.

anonymous · Answer

the amount you have in the product (right hand side) become coefficient on the left to balance

anonymous · Answer

3Cu(SO4) + 2Al --> Al2 (SO4)3+ 3Cu  do you want me to show you how I got there?

anonymous · Answer

yes but why have you added more Cu you only have 1 on either side at the start so no need to increase that

anonymous · Answer

On the products side there are 3 units of SO4 so the only way to be balanced is to increase the reactant side by 3. When you do that ( because its a compound of CU(SO4) ) the 3 fold increase also effects the Cu on the reactant side. Therefore to balance it you must also increase the Cu by 3 on the products side.