Question 1

Which of the following elements has the greatest number of valence electrons?

Accepted Answer

Chlorine (Cl)

Question 2

According to the octet rule, which of the following ions is most likely to form from a sulfur atom?

Accepted Answer

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

Question 3

Which of the following compounds is ionic?

Accepted Answer

NaCl

Question 4

What is the correct formula for the compound formed between calcium ions and phosphate ions?

Accepted Answer

$$\mathrm{Ca_3$(PO_4$)_2}$$

Question 5

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

Accepted Answer

Iron(III) chloride

Question 6

Which Lewis structure correctly represents the bonding in water ($$\mathrm{H_2O}$$)?

Accepted Answer

O atom with two single bonds to H and two lone pairs

Question 7

What is the molecular shape of methane ($$\mathrm{CH_4$}) $$according to VSEPR theory?

Accepted Answer

Tetrahedral

Question 8

Which of the following molecules is nonpolar despite having polar bonds?

Accepted Answer

CO$$_2$$

Question 9

Which of the following statements best describes the difference between ionic and covalent compounds?

Accepted Answer

Ionic compounds transfer electrons, covalent compounds share electrons.

Question 10

Which of the following is the correct condensed formula for 2-methylpropane?

Accepted Answer

$$\mathrm{CH_3CH(CH_3$)CH_3$}$$

Question 11

Which functional group is present in the molecule with the formula $$\mathrm{CH_3COOH}$$?

Accepted Answer

Carboxylic acid

Question 12

Which of the following best describes a saturated hydrocarbon?

Accepted Answer

Contains only single bonds between carbon atoms

Question 13

Which of the following is a structural isomer of butane ($$\mathrm{C_4H_{10}}$$)?

Accepted Answer

2-methylpropane

Question 14

A molecule has the following structure: $$\mathrm{CH_3CH_2CH_2OH}. $$What is the IUPAC name of this compound?

Accepted Answer

Propanol

Question 15

Which of the following molecules is chiral?

Accepted Answer

2-butanol

Question 16

Which of the following best describes the shape around the central atom in ammonia ($$\mathrm{NH_3$}$$)?

Accepted Answer

Trigonal pyramidal

Question 17

Which of the following best explains why $$\mathrm{H_2O} is a $$polar molecule?

Accepted Answer

It has polar bonds and a bent shape

Question 18

Which of the following is the correct name for $$\mathrm{Na_2SO_4}$$?

Accepted Answer

Sodium sulfate

Question 19

Which of the following best describes an enantiomer?

Accepted Answer

A molecule that is a non-superimposable mirror image of another

Question 20

Which of the following is the correct skeletal structure for benzene?

Accepted Answer

A hexagon with alternating double bonds

Exam 2 Review: Compounds, Bonding, and Organic Chemistry Fundamentals

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