+ -> +

balance the chemical equation.
a) 1, 2, 1, 2
b) 1, 1, 3, 1
c) 3, 1, 3, 2
d) 2, 3, 2, 3

the answer is A)1,2,1,2

Explanation:

hop is is correct

C)3, 1, 3, 2

Explanation:

To balance the equation, start with the simple element, Fe. You need a coefficient of 2 on the product side to balance the Fe. Then balance the O. You need a coefficient of 3 on the product side to balance the O. This makes 3 Magnesium atoms that are left unbalanced. Finally, put a 3 on the Mg on the reactant side to finish, giving you coefficients of 3, 1, 3, 2.

2b2t

explanation:

2b2t