Which of the following chemical equa2ons is balanced?
A. C3H8 + 5 O2 ! 3 CO2 + H2O
B. Mg3N2 + H2O ! 3 MgO + 2 NH3
C. Cu(NO3)2 + 2 Ag → 2 AgNO3 + Cu
D. H2SO4 + 2 NaCN ! HCN + 2 Na2
"Cu(NO_3)_2 + 2 Ag \u2192 2 AgNO_3 + Cu"
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