What should be added to the RHS to balance the equation ?
4 (6 + x ) = 28 + 4x + ____
LHS is: 4(6) + 4(x) = 24 + 4x
Adding -4 to RHS will give 24 + 4x Hence -4 should be added to RHS to balance the equation.
So ‘ option b’ is the answer.
How many H2O should be added to the RHS of the following equation to balance number of oxygen atoms on the left ? 6Fe2++Cr2O2−7+14H+⟶6Fe3++2Cr3++ ___________