Which names are incorrect and why? CaCl2 Calcium chloride Cu2O Copper (II) oxide PbS2 Lead (II) sulfide?
- Old Science GuyLv 74 years agoFavorite Answer
calcium chloride is correct
Cu2O should be copper(I) oxide because the oxidation number of Cu is +1 (O is -2)
PbS2 should be lead(IV) sulfide (Pb is +4 while S is -2)
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