Question

Which of the following shows the completed and balanced reaction for the replacement

reaction shown below?
Al + H2S04 ?

Answer 1

D

Step-by-step explanation:

For replacement reactions you have to combine A and C (which is Al and SO4)

Now we have

AlSO4

The problem is that the charges do not match

SO4 has a 2 charge and Al has a 3 charge

Crossing the charges will get us..

Al2(SO4)3 which leaves D