Hn Chem Nomenclature test review - key

Predict the empirical formula of the ionic compound

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21) Predict the empirical formula of the ionic compound that forms from magnesium and oxygen. A) Mg 2 O B) MgO C) MgO 2 D) Mg 2 O 2 E) Mg 3 O 2 Answer:  B 22) The correct name for K 2 S is __________. 23) The correct name for CaH 2  is __________. 24) The correct name for SO is __________.
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25) The correct name for H 2 CO 3  is __________. A) carbonous acid B) hydrocarbonate C) carbonic acid D) carbohydrate E) carbohydric acid Answer:  C 26) The correct name for H 2 SO 4  is __________. 27) The correct name for HClO is __________. 28) The name of PCl 3  is __________. 29) The correct formula of iron(III) bromide is __________. A) FeBr 2 B) FeBr 3 C) FeBr
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D) Fe 3 Br 3 E) Fe 3 Br Answer:  B 30) The correct name for Mg(ClO 3 ) 2  is __________. 31) Chromium and chlorine form an ionic compound whose formula is CrCl 3 .  The name of this  compound is __________.
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