Question

Mg(OH)2+2HNO3=Mg(NO3)2+2H2O
НУЖНО СДЕЛАТЬ ОВР И РИО

Answer 1

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

Mg(OH)2 + 2H(+) + 2NO3(-) = Mg(+2) + 2NO3(-) + 2H2O

Mg(OH)2 + 2H(+) = Mg(+2) + 2H2O

Answer 2

$Mg(OH)_{2}+2HNO_{3}=Mg(NO_{3})_{2}+2H_{2}O\\Mg(OH)_{2}+2H^++2NO_{3}^-=Mg^{2+}+2NO_{3}^-+2H_{2}O\\Mg(OH)_{2}+2H^+=Mg^{2+}+2H_{2}O$