Which One Doesn’t Belong?

KBr CO MgCl2 MgO Find the reason one of these does not belong. Hint: what kinds of compounds do you see? KBr CO MgCl2 MgO 1 2 3 4

Sodium chloride Scandium nitride Aluminum oxide Magnesium oxide Find the reason one of these does not belong. Hint: write the formulas Scandium nitride Sodium chloride Aluminum oxide Magnesium oxide 1 2 3 4

NaCl MgCl2 BeCl2 BeCl Find the reason one of these does not belong. Hint: check that these can exist 1 NaCl 2 MgCl2 3 BeCl2 4 BeCl

Calcium chloride Beryllium chloride Magnesium chloride Sodium chloride Find the reason one of these does not belong. Hint: write the formulas 1 Calcium chloride 2 Beryllium chloride 3 Magnesium chloride 4 Sodium chloride

Manganese (II) fluoride Find the reason one of these does not belong. Hint: look at the ion charges 1 Lithium fluoride 2 Sodium fluoride 3 Magnesium fluoride 4 Manganese (II) fluoride

NaCl MgCl2 BeCl2 FeCl2 Find the reason one of these does not belong. Hint: write the names 1 NaCl 2 MgCl2 3 BeCl2 4 FeCl2

NaOH NaF MgCl2 MgO Find the reason one of these does not belong. Hint: poly … 1 NaOH 2 NaF 3 MgCl2 4 MgO

Find the reason one of these does not belong. Hint: poly …. 1 NH4OH 2 CaCO3 3 CaCl2 4 (NH4)2CO3

FeO FeS FeCl3 FeCl2 Find the reason one of these does not belong. Hint: write the names 1 FeO 2 FeS 3 FeCl3 4 FeCl2

Find the reason one of these does not belong. Hint: do polyatomic ions break apart and make new things when they participate in forming a compound? Or are they treated as one big ion that you don’t break apart? Only one of these exists 1 Mg(OH)2 2 MgOH 3 MgOH2 4 MgO2H2

MnO MnCO3 MnPO4 MnS Find the reason one of these does not belong. Hint: write the names 1 MnS 2 MnO 3 MnCO3 4 MnPO4

Copper (II) hydroxide Calcium hydroxide Copper (I) hydroxide Find the reason one of these does not belong. Hint: write the formulas 1 Magnesium hydroxide 2 Copper (II) hydroxide 3 Calcium hydroxide 4 Copper (I) hydroxide