Question 1

Which of the following is the correct formula and charge for the hydrogen carbonate ion, also known as bicarbonate?

Accepted Answer

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

Question 2

A patient is given a medication containing sodium thiosulfate. What is the correct formula for the thiosulfate ion?

Accepted Answer

$$\mathrm{S_2O_3$$^{2-}$$}$$

Question 3

Which of the following ions is correctly paired with its name?

Accepted Answer

$$\mathrm{CN^-}$$ : Cyanide

Question 4

A water treatment plant uses hypochlorite ions for disinfection. What is the correct formula for the hypochlorite ion?

Accepted Answer

$$\mathrm{ClO^-}$$

Question 5

Which of the following ions has a $$2-$$ charge?

Accepted Answer

$$\mathrm{CO_3$^{2-}}$$

Question 6

A laboratory experiment produces a gas with the formula $$\mathrm{N_3$^-}. $$What is the name of this ion?

Accepted Answer

Azide

Question 7

Which of the following correctly matches the ion with its formula and charge?

Accepted Answer

Peroxide: $$\mathrm{O_2$^{2-}}$$

Question 8

Which of the following ions is polyatomic and contains both hydrogen and phosphorus?

Accepted Answer

$$\mathrm{H_2PO_4^-}$$

Question 9

A solution contains the ion $$\mathrm{$$ClO_4$$^-}. $$What is the correct name for this ion?

Accepted Answer

Perchlorate

Question 10

Which of the following ions is the conjugate base of sulfuric acid ($$\mathrm{H_2SO_4}$$)?

Accepted Answer

$$\mathrm{$$HSO_4$$^-}$$

Question 11

Which of the following ions is commonly found in household bleach?

Accepted Answer

$$\mathrm{ClO^-}$$

Question 12

Which of the following is the correct formula for the acetate ion?

Accepted Answer

$$\mathrm{C_2H_3O_2^-}$$

Question 13

A sample contains the ion $$\mathrm{IO_3$^-}. $$What is the correct name for this ion?

Accepted Answer

Iodate

Question 14

Which of the following ions is a common component of baking soda?

Accepted Answer

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

Question 15

Which of the following ions is the conjugate base of phosphoric acid ($$\mathrm{H_3PO_4}) $$after losing two protons?

Accepted Answer

$$\mathrm{$$HPO_4$$^{2-}}$$

Question 16

Which of the following ions is present in hydrogen peroxide and is responsible for its oxidizing properties?

Accepted Answer

$$\mathrm{O_2$^{2-}}$$

Question 17

Which of the following is the correct formula for the oxalate ion?

Accepted Answer

$$\mathrm{C_2O_4$$^{2-}$$}$$

Question 18

A solution contains the ion $$\mathrm{$$BrO_3$$^-}. $$What is the correct name for this ion?

Accepted Answer

Bromate

Question 19

Which of the following ions is formed when sulfurous acid ($$\mathrm{H_2SO_3}) $$loses one proton?

Accepted Answer

$$\mathrm{$$HSO_3$$^-}$$

Question 20

Which of the following ions is correctly matched with its formula and charge?

Accepted Answer

Hydrogen phosphate: $$\mathrm{$$HPO_4$$^{2-}}$$

Common Polyatomic Anions: Names, Formulas, and Charges

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