Which of the following shows the chemical formula for the polyatomic ionic compound potassium sulfate? Question 4 options: a) K(SO4)2 b) K2SO4 c) KSO4 d) K2(SO4)2 What is the chemical name for the ionic compound, Pb(NO3)2? Question 5 options: a) lead nitrate(II) b) lead nitrate(IV) c) lead(IV) nitrate d) lead(II) nitrate Which of the following shows the chemical formula for the binary ionic compound sodium fluoride? Question 9 options: a) Na2F b) Na3F2 c) NaF d) NaF2

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