Calcium + calcium nitrate tetrahydrate ( Ca+Ca(NO3)2*4H2O ) reaction

10g mixture of Ca (granules) + Ca(NO3)2*4H2O ratio 0.65 (stoichiometric)
Chemical equation: 9 Ca + Ca(NO3)2*4H2O = 10 CaO + N2 + 4 H2
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