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17 July, 18:43

What is the correct balanced equation for the following:

aluminum + copper (II) sulfite - > copper + aluminum sulfite

(A) 2A + 3CuSO2 - > Cu + Al (SO) 2

(B) 2A1 + 3CuSO4 - > 3Cu + Al2 (SO4) 3

(C) Al + CuSO3 - > Cu + AISO3

(D) 2A1 + 3CuSO3 - > 3Cu + Al2 (SO3) 3

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  1. 17 July, 20:50
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    Option (D). 2Al + 3CuSO3 - > 3Cu + Al2 (SO3) 3

    Explanation:

    Let start with the following

    Al + CuSO3 - > Cu + Al2 (SO3) 3

    There are 3 atoms of SO3 on the right. And 1 on the left. So to balance it, put 3 in front of CuSO3 as shown below:

    Al + 3CuSO3 - > Cu + Al2 (SO3) 3

    Now we need to balance Cu on the right, since there are 3 atoms of Cu on the left. To do this, put 3 in front of Cu as shown below;

    Al + 3CuSO3 - > 3Cu + Al2 (SO3) 3

    There are 2 atoms of Al on the right and 1 atom on the left. It must be balanced by putting 2 in front of Al to bal the equation as shown below;

    2Al + 3CuSO3 - > 3Cu + Al2 (SO3) 3
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