Identify the polyatomic ion and its charge in each compound: KNO 2 , CaSO 4 , Mg(NO
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Identify the polyatomic ion and its charge in each compound: KNO2, CaSO4, Mg(NO3)2.
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(a) NO₂, SO42, and NO3 (c) K+, Ca2+, Mg2+, NO₂, SO42, and NO3 (b) K+, Ca²+, and Mg²+ (d) NO₂2, SO4, and NO3²-
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