Question 1

Which of the following is the correct formula for magnesium nitrate?

Accepted Answer

$$\mathrm{Mg(NO_3$)_2}$$

Question 2

What is the name of the polyatomic ion with the formula $$\mathrm{SO_3$^{2-}}$$?

Accepted Answer

Sulfite

Question 3

Which of the following compounds contains a polyatomic ion with a positive charge?

Accepted Answer

$$\mathrm{NH_4NO_3}$$

Question 4

What is the correct name for the compound $$\mathrm{Fe(OH)_3}$$?

Accepted Answer

Iron(III) hydroxide

Question 5

Which of the following is the correct formula for aluminum bicarbonate?

Accepted Answer

$$\mathrm{Al($$HCO_3$$)_3}$$

Question 6

What is the correct name for $$\mathrm{Na_3PO_4}$$?

Accepted Answer

Sodium phosphate

Question 7

Which of the following polyatomic ions is an exception to the 'ate'/'ite' naming rule?

Accepted Answer

Hydroxide

Question 8

A compound used in the bleaching of pulp from wood fibers is sodium chlorite. What is its formula?

Accepted Answer

$$\mathrm{$$NaClO_2$$}$$

Question 9

Which of the following ions has a $$3-$$ charge?

Accepted Answer

$$\mathrm{PO_4$^{3-}}$$

Question 10

What is the correct formula for copper(I) nitrate?

Accepted Answer

$$\mathrm{$$CuNO_3$$}$$

Question 11

Which of the following is the correct name for $$\mathrm{Pb_3$(PO_3$)_2}$$?

Accepted Answer

Lead(II) phosphite

Question 12

If you add a hydrogen ion ($$\mathrm{H^+}) to $$carbonate ($$\mathrm{CO_3$^{2-}}$$), what polyatomic ion do you form?

Accepted Answer

$$\mathrm{$$HCO_3$$^-}$$

Question 13

Which of the following is the correct formula for tin(IV) hydroxide?

Accepted Answer

$$\mathrm{Sn(OH)_4}$$

Question 14

What is the correct name for $$\mathrm{Ba_3$(PO_3$)_2}$$?

Accepted Answer

Barium phosphite

Question 15

Which of the following is the correct formula for iron(III) sulfate?

Accepted Answer

$$\mathrm{Fe_2$(SO_4$)_3}$$

Question 16

Which of the following polyatomic ions contains the greatest number of oxygen atoms?

Accepted Answer

$$\mathrm{$$ClO_4$$^-}$$

Question 17

What is the correct name for $$\mathrm{$$MgSO_3$$}$$?

Accepted Answer

Magnesium sulfite

Question 18

Which of the following is the correct formula for nickel(II) carbonate?

Accepted Answer

$$\mathrm{$$NiCO_3$$}$$

Question 19

Which of the following is the correct name for $$\mathrm{Ca(NO_2$)_2}$$?

Accepted Answer

Calcium nitrite

Question 20

A fertilizer contains ammonium nitrate. Which ions are present in this compound?

Accepted Answer

Ammonium and nitrate

Polyatomic Ions: Names, Formulas, and Ionic Compounds

Study Guide - Practice Questions