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2015-09-20T13:21:23+05:30
Ca+HNO _{3} =No reaction
Mg+2HNO _{3}=Mg(NO _{3} ) _{2} +H_{2}
Dilute nitric acid only reacts with Magnesium and Manganese metals.
1 5 1
Sorry the equation will be Ca + 4 HNO3 = Ca(NO3)2 + 2 H2O + 2 NO2 .