Question

HNO3 + Mg(OH)2 → H2O + Mg(NO3)2 balancear

Answer 1

2 HNO3 + Mg(OH)2 → 2 H2O + Mg(NO3)2

Answer 2

2HNO3 + Mg(OH)2 ----- 2H2O + Mg(NO3)2