Correct: CH4, CaCO, SiO2, HF, H2O, C6H12O6, NH3, FeO2, NaCl, AgNO3, NaOH, LiOH, KOH, CO2, NH4, Incorrect: He2, O2, Li, K, Na, Ca, C, F2, H2, Zn, Fe, Cu, Ne, Ag, Sn,

Elements vs. Compounds

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