Question 1

Which of the following best explains why water (H$$_2O) $$has properties that are very different from both hydrogen and oxygen?

Accepted Answer

Water is a compound with a unique arrangement of hydrogen and oxygen atoms bonded together, resulting in new properties.

Question 2

Which of the following is the correct empirical formula for a compound containing 2 aluminum atoms and 3 oxygen atoms?

Accepted Answer

$$\mathrm{Al_2O_3}$$

Question 3

What is the correct name for the compound Fe$$_2(SO$_4$$)$$_3$$?

Accepted Answer

Iron(III) sulfate

Question 4

Which of the following elements exists naturally as a diatomic molecule?

Accepted Answer

Chlorine

Question 5

What is the correct formula for magnesium sulfate heptahydrate?

Accepted Answer

$$\mathrm{$$MgSO_4$$ \cdot 7H_2O}$$

Question 6

Which of the following is the correct name for the compound N$$_2O$_4$$?

Accepted Answer

Dinitrogen tetraoxide

Question 7

A compound is named copper(II) nitrate. What is its correct chemical formula?

Accepted Answer

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

Question 8

Which of the following best describes an ionic compound?

Accepted Answer

A compound composed of cations and anions held together by electrostatic forces.

Question 9

What is the correct name for H$$_2SO$_3(aq$$)?

Accepted Answer

Sulfurous acid

Question 10

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

Accepted Answer

$$\mathrm{$$CrPO_4$$}$$

Question 11

Which of the following is a molecular compound?

Accepted Answer

CO$$_2$$

Question 12

What is the correct name for the acid HNO$$_2(aq$$)?

Accepted Answer

Nitrous acid

Question 13

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

Accepted Answer

$$\mathrm{Ca(C_2H_3O_2)_2}$$

Question 14

Which of the following is the correct name for the compound PbBr$$_2$$?

Accepted Answer

Lead(II) bromide

Question 15

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

Accepted Answer

$$\mathrm{N_2O_5}$$

Question 16

Which of the following is the correct name for the compound NH$$_4Cl$$?

Accepted Answer

Ammonium chloride

Question 17

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

Accepted Answer

$$\mathrm{HBr(aq)}$$

Question 18

Which of the following best describes a hydrate?

Accepted Answer

A compound that contains a specific number of water molecules bound to its ions.

Question 19

What is the correct name for the compound CoCl$$_2$$·6H$$_2O$$?

Accepted Answer

Cobalt(II) chloride hexahydrate

Question 20

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

Accepted Answer

$$\mathrm{Fe(NO_3$)_3}$$

Chapter 3: Molecules, Compounds, and Nomenclature – General Chemistry Study Notes

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