Question 1

Which of the following is classified as a molecular compound?

Accepted Answer

C6H12O6

Question 2

What is the correct formula for a compound formed between potassium ions ($$K^+) $$and nitride ions ($$N^{3-}$$)?

Accepted Answer

$$K_3N$$

Question 3

Which of the following is the empirical formula for benzene ($$C_6H_6$$)?

Accepted Answer

$$CH$$

Question 4

What is the name of the compound $$Fe(NO_3$)_3$$?

Accepted Answer

Iron(III) nitrate

Question 5

Which of the following is a correct name for $$N_2O_5$$?

Accepted Answer

Dinitrogen pentoxide

Question 6

Calculate the formula mass of $$CCl_4$$ using the following atomic masses: C = 12.01 amu, Cl = 35.45 amu.

Accepted Answer

$$154.81$$ amu

Question 7

Which of the following compounds contains a polyatomic ion?

Accepted Answer

$$MgSO_4$$

Question 8

What is the correct name for $$Cu(NO_3$)_2$$?

Accepted Answer

Copper(II) nitrate

Question 9

Which of the following is the correct formula for magnesium sulfate heptahydrate?

Accepted Answer

$$MgSO_4$$ \cdot 7H_2O$$

Question 10

What is the correct name for $$NiCl_2$$ \cdot 6H_2O$$?

Accepted Answer

Nickel(II) chloride hexahydrate

Question 11

Which of the following is a binary acid?

Accepted Answer

HCl(aq)

Question 12

What is the correct name for $$H_2SO_3(aq)$$?

Accepted Answer

Sulfurous acid

Question 13

Which of the following is the correct formula for calcium chloride?

Accepted Answer

$$CaCl_2$$

Question 14

What is the correct name for $$NH_4Cl$$?

Accepted Answer

Ammonium chloride

Question 15

Which of the following is a molecular element?

Accepted Answer

$$Cl_2$$

Question 16

What is the correct name for $$P_2O_5$$?

Accepted Answer

Diphosphorus pentoxide

Question 17

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

Accepted Answer

$$FePO_4$$

Question 18

What is the correct name for $$Al_2$$($$SO_4)_3$?

Accepted Answer

Aluminum sulfate

Question 19

Which of the following is the correct formula for dinitrogen tetroxide?

Accepted Answer

$$N_2O_4$$

Question 20

Which of the following is the correct name for $$HClO_2(aq$$)$$?

Accepted Answer

Chlorous acid

Molecules and Compounds: Classification, Representation, and Nomenclature

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