Question 1

Which of the following compounds is ionic?

Accepted Answer

NaCl

Question 2

What is the correct name for the compound Fe\_2O\_3?

Accepted Answer

Iron(III) oxide

Question 3

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

Accepted Answer

N\_2O\_5

Question 4

A compound contains 40% sulfur and 60% oxygen by mass. What is its empirical formula?

Accepted Answer

SO\_2

Question 5

Which functional group is present in the following structure? $$ \mathrm{R{-}COOH} $$

Accepted Answer

Carboxylic acid

Question 6

What is the correct IUPAC name for the following hydrocarbon: $$ \mathrm{CH_3${-}CH_2${-}CH_2${-}CH_3$} $$?

Accepted Answer

Butane

Question 7

Which of the following is a branched alkane?

Accepted Answer

2-methylpropane

Question 8

What is the molecular formula for hydrogen cyanide?

Accepted Answer

HCN

Question 9

Which prefix is used for 7 atoms in covalent compound naming?

Accepted Answer

Hepta-

Question 10

Given a compound with 43.64% carbon, 8.16% hydrogen, and 48.20% oxygen by mass, what is its empirical formula?

Accepted Answer

C\_3H\_8O\_2

Question 11

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

Accepted Answer

Na\_2Cr\_2O\_7

Question 12

What is the name of the compound with the formula $$ \mathrm{P_2O_5} $$?

Accepted Answer

Diphosphorus pentoxide

Question 13

Which of the following is a correct Lewis structure for methane?

Accepted Answer

A central carbon atom with four single bonds to four hydrogen atoms

Question 14

Which of the following compounds contains a ketone functional group?

Accepted Answer

$$ \mathrm{CH_3COCH_3} $$

Question 15

What is the correct name for the compound $$ \mathrm{C_2H_2} $$?

Accepted Answer

Ethyne

Question 16

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

Accepted Answer

(NH\_4)\_2Cr\_2O\_7

Question 17

Which of the following is a correct description of a covalent bond?

Accepted Answer

A bond formed by the sharing of electrons between two nonmetals

Question 18

What is the correct name for the compound $$ \mathrm{SO_3$} $$?

Accepted Answer

Sulfur trioxide

Question 19

Which of the following is the correct formula for tetrachloromethane?

Accepted Answer

CCl\_4

Question 20

A compound contains 22.73% magnesium, 30.73% sulfur, and 46.54% oxygen. What is its empirical formula?

Accepted Answer

MgSO\_4

Study Guide: Ionic and Covalent Compounds, Hydrocarbons, and Functional Groups

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