a) 2HNO3 +Mg(OH)2---> Mg(NO3)2 + 2H2O 2H(+) + 2NO3(-) +Mg(2+) + 2 OH(-)---> Mg(2+) + 2NO3(-) + 2H2O 2H(+) + 2 OH(-)--->2H2O b) 2Na +H2SO3---> Na2SO3 + H2 2Na +2H(+) + SO3(2-)--->2Na(+) + SO3(2-) + H2 2Na +2H(+)--->2Na(+) + H2
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a)
2HNO3 +Mg(OH)2---> Mg(NO3)2 + 2H2O
2H(+) + 2NO3(-) +Mg(2+) + 2 OH(-)---> Mg(2+) + 2NO3(-) + 2H2O
2H(+) + 2 OH(-)--->2H2O
b)
2Na +H2SO3---> Na2SO3 + H2
2Na +2H(+) + SO3(2-)--->2Na(+) + SO3(2-) + H2
2Na +2H(+)--->2Na(+) + H2