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Fill in the coefficients that will balance the following reaction:

a0Cr2(SO4)3 + a1AgNO3 -> a2Cr(NO3)3 + a3Ag2SO4

User Caot
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2 Answers

4 votes

Answer

Step-by-step explanation:

can you please put it in boxes so i can find out the answer

User Luca Torella
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7.7k points
1 vote

Answer:

a0=1

a1=6

a2=2

a3=3

Step-by-step explanation:

We have to start with the reaction:


Cr_2(SO_4)_3~+~AgNO_3~->~Cr(NO_3)_3~+~Ag_2SO_4

We have to start with "
Cr". If we want to balance Cr we have to obtain 2 on both sides. Therefore we have to add a "2" on the right side, so:


Cr_2(SO_4)_3~+~AgNO_3~->~2Cr(NO_3)_3~+~Ag_2SO_4

Then we can balance "
NO_3" as a whole. We have 6 on the right, we have to have the same amount on the left side, so:


Cr_2(SO_4)_3~+~6AgNO_3~->~2Cr(NO_3)_3~+~Ag_2SO_4

Then we can balance "
Ag". We have 6 on the left, so we have to have the same amount on the right if we already have 2 we have to put a · in front (on the right side) to obtain in total 6, so:


Cr_2(SO_4)_3~+~6AgNO_3~->~2Cr(NO_3)_3~+~3Ag_2SO_4

Finally, when we add this last number the
SO_4 we will have 3 on both sides. Therefore the reaction is already balanced.

User Rostyslav Roshak
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7.6k points