No2 - N=+4, O2=-2;
H2= 0;
NH3 - N=-3, H=1;
AlPo4- Al=+3, P=+5, O4= -2;
IF7 - I=7, F =-1;
CaSo4 - Ca= 2, S=6, O=-2
( CaSo4- = HCaSo4) - H=1, Ca=2, S=6, O4= -2
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Answers & Comments
NO2 H2 NH3 AlPO4 IF7 CaSO4
No2 - N=+4, O2=-2;
H2= 0;
NH3 - N=-3, H=1;
AlPo4- Al=+3, P=+5, O4= -2;
IF7 - I=7, F =-1;
CaSo4 - Ca= 2, S=6, O=-2
( CaSo4- = HCaSo4) - H=1, Ca=2, S=6, O4= -2