Question 1

Which of sop the following is the correct name for the compound with the formula $$\mathrm{$$FeCl_3$$}$$?

Accepted Answer

Iron(III) chloride

Question 2

What is the correct formula for ammonium sulfate?

Accepted Answer

$$\mathrm{(NH_4$)_2SO_4}$$

Question 3

Which of the following statements about polyatomic ions is TRUE?

Accepted Answer

Polyatomic ions are ions composed of more than one atom, often ending in -ate or -ite.

Question 4

Which of the following compounds contains both ionic and covalent bonds?

Accepted Answer

$$\mathrm{$$NaNO_3$$}$$

Question 5

How many valence electrons are present in a molecule of $$\mathrm{H_2O}$$?

Accepted Answer

8

Question 6

Which of the following elements can have an expanded octet in a Lewis structure?

Accepted Answer

Sulfur

Question 7

What is the molecular geometry and approximate bond angle of $$\mathrm{NH_3$}$$ according to VSEPR theory?

Accepted Answer

Trigonal pyramidal, $$107^\circ$$

Question 8

Which of the following is the correct name for $$\mathrm{N_2O_5}$$?

Accepted Answer

Dinitrogen pentoxide

Question 9

Given the skeletal structure of a straight-chain alkane with 5 carbon atoms, how many hydrogen atoms are present?

Accepted Answer

12

Question 10

Which of the following bonds is the most polar, based on electronegativity differences?

Accepted Answer

$$\mathrm{H-F}$$

Question 11

Which of the following molecules is nonpolar, despite containing polar bonds?

Accepted Answer

$$\mathrm{CO_2$}$$

Question 12

Which of the following is an organic molecule?

Accepted Answer

$$\mathrm{C_2H_6}$$

Question 13

Which of the following statements about hydrocarbons is correct?

Accepted Answer

Hydrocarbons are nonpolar molecules composed only of carbon and hydrogen.

Question 14

Which of the following alcohols is most likely to be soluble in water?

Accepted Answer

Methanol ($$\mathrm{CH_3OH})$$

Question 15

Rank the following intermolecular forces from weakest to strongest.

Accepted Answer

London dispersion \u003c Dipole-dipole \u003c Hydrogen bonding

Question 16

Which type of intermolecular force is primarily responsible for the high boiling point of water?

Accepted Answer

Hydrogen bonding

Question 17

Which of the following chemical changes is evidence that a chemical reaction has occurred?

Accepted Answer

A gas is produced when vinegar is added to baking soda.

Question 18

Balance the following equation: $$\mathrm{C_3H_8 + O_2$ \rightarrow CO_2$ + H_2O}. $$What is the coefficient in front of $$\mathrm{O_2$}$$?

Accepted Answer

5

Question 19

Which of the following molecules can form hydrogen bonds with water?

Accepted Answer

$$\mathrm{CH_3OH}$$

Question 20

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

Accepted Answer

$$\mathrm{$$FeSO_4$$}$$

Chem 101: Ionic and Covalent Compounds, Molecular Polarity, and Chemical Reactions

Study Guide - Practice Questions