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Balance the following chemical reactions showing how each type of atom have the same total number as reactants and products.
1) ____Hg1O1 (s) + ____Cl2 (g) --> ____Hg1Cl1 (s) + ____O2 (g)
Hg: I
Cl: I
O: I
2) ____Na1 (s) + ____Br2 (l) ---> ____Na1Br1 (s)
Na: I
Br: I
3) ____K1Cl1O3 (s) ---> ____K1Cl1 (s) + ____O2 (g)
K: I
Cl: I
O: I
4) ____Ca1(O1H1)2 (aq) + ____H1(N1O3)1 (aq) --> ____H2O1 (g) + ____Ca1(N1O3)2 (aq)
Ca: I
N: I
H: I
O: I