Question 1

Which of the following best describes a polyatomic ion?

Accepted Answer

A tightly bound group of atoms with an overall charge

Question 2

What is the systematic name for the polyatomic ion $$\mathrm{NO_2$^-}$$?

Accepted Answer

Nitrite

Question 3

Which formula represents the thiosulfate ion, given that 'thio-' means replacing one oxygen with a sulfur in sulfate ($$\mathrm{SO_4$^{2-}}$$)?

Accepted Answer

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

Question 4

What is the correct name for the compound $$\mathrm{Al($$BrO_4$$)_3}$$?

Accepted Answer

Aluminum perbromate

Question 5

Which of the following is the correct formula for copper(I) nitrate?

Accepted Answer

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

Question 6

What is the systematic name for $$\mathrm{$$AsO_4$$^{3-}}$$?

Accepted Answer

Arsenate

Question 7

Which of the following is the correct formula for sodium dichromate?

Accepted Answer

$$\mathrm{Na_2Cr_2O_7}$$

Question 8

What is the correct name for the hydrate $$\mathrm{K_2Cr_2O_7 \cdot 3H_2O}$$?

Accepted Answer

Potassium dichromate trihydrate

Question 9

Which of the following is the correct formula for calcium selenide hexahydrate?

Accepted Answer

$$\mathrm{CaSe \cdot 6H_2O}$$

Question 10

What is the systematic name for $$\mathrm{H_2S} as an $$acid?

Accepted Answer

Hydrosulfuric acid

Question 11

Which of the following is the correct formula for hypobromous acid?

Accepted Answer

$$\mathrm{HBrO}$$

Question 12

What is the correct name for the molecular compound $$\mathrm{N_2S_4}$$?

Accepted Answer

Dinitrogen tetrasulfide

Question 13

Which of the following is the correct formula for acetic acid?

Accepted Answer

$$\mathrm{HC_2H_3O_2}$$

Question 14

Which of the following is the correct name for $$\mathrm{IO_3$^-}$$?

Accepted Answer

Iodate

Question 15

What is the correct name for $$\mathrm{$$CoCO_3$$}$$?

Accepted Answer

Cobalt(II) carbonate

Question 16

Which of the following is the correct formula for tetraphosphorus pentaselenide?

Accepted Answer

$$\mathrm{P_4Se_5}$$

Question 17

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

Accepted Answer

$$\mathrm{$$CrO_4$$^{2-}}$$

Question 18

What is the correct name for $$\mathrm{$$SeF_6$$}$$?

Accepted Answer

Selenium hexafluoride

Question 19

Which of the following is the correct formula for dibromine heptoxide?

Accepted Answer

$$\mathrm{Br_2O_7}$$

Question 20

Which of the following is the correct name for $$\mathrm{$$CaCl_2$$}$$?

Accepted Answer

Calcium chloride

Molecules and Compounds: Polyatomic Ions and Compound Naming

Study Guide - Practice Questions