Deck 4: Types of Chemical Compounds and Their Reactions

Question 1

Acid-base neutrality on the pH scale is signified by a pH of

A)zero
B)1
C)7
D)14

Answer 1

C

Question 2

A pH of 13 indicates a solution which is

A)strongly acidic
B)strongly basic
C)weakly acidic
D)weakly basic

Answer 2

B

Question 3

A strong acid will tend to

A)produce more hydronium ions than a weak acid
B)produce more hydroxide ions than a weak base
C)produce less hydronium ions than a weak acid
D)neutralize other strong acids

Answer 3

A

Question 4

A substance which, when dissolved in water, produces hydronium (H₃O⁺) ions, is known as (a, an)

A)acid
B)base
C)salt
D)hydrocarbon

Question 5

A substance which, when dissolved in water, produces hydroxide (OH^-) ions, is known as (a, an)

A)acid
B)base
C)salt
D)polymer

Question 6

Bases

A)are also known as alkalis
B)turn red litmus paper blue
C)have a bitter taste
D)feel slippery on the skin
E)all of these

Question 7

Compared to a solution with a pH of 4, a solution with a pH of 3 is

A)twice as acidic
B)ten times more acidic
C)10 times more basic
D)twice as basic

Question 8

Compared to a solution with a pH of 10, a solution with a pH of 12 is

A)twice as basic
B)twice as acidic
C)ten times more basic
D)100 times more basic

Question 9

Compounds containing only carbon, hydrogen, and single bonds are known as

A)alkanes
B)alkenes
C)alkynes
D)none of these

Question 10

Compounds containing only carbon, hydrogen, single bonds, and one or more double bonds are known as

A)alkanes
B)alkenes
C)alkynes
D)none of these

Question 11

Compounds containing only carbon, hydrogen, single bonds, and one or more triple bonds are known as

A)alkanes
B)alkenes
C)alkynes
D)none of these

Question 12

Compounds with benzene-type rings are known as

A)aliphatics
B)aromatics
C)oxidizers
D)olefins

Question 13

Given that carbon-14 (C-14) has a half-life of 5,000 years, if we begin with 48 atoms of C-14, how many will remain after 15,000 years?

A)48
B)24
C)12
D)6

Question 14

Given that uranium-238 (U-238) has a half-life of 4.5 billion years, if we begin with 16 atoms of U-238, how many atoms will remain after 9 billion years?

A) 16
B)8
C)4
D)2

Question 15

Half-lives of radioactive species are always less than 10 years.

Question 16

Half-lives of radioactive species can vary greatly, e.g., from a fraction of a second to billions of years.

Question 17

Identify the following reaction as to type.C(s) + O₂(g) → CO₂(g)

A)oxidation
B)precipitation
C)neutralization
D)oxidation-reduction

Question 18

Identify the following reaction as to type.HCl + NaOH → NaCl + H₂O

A)oxidation
B)precipitation
C)neutralization
D)oxidation-reduction

Question 19

Identify the following reaction as to type.C₂H₂ + 2 H₂ → C₂H₆

A)oxidation-reduction
B)precipitation
C)neutralization
D)saponification

Question 20

Identify the following reaction as to type.H₂SO₄ + Ca(OH)₂ → CaSO₄ + 2H₂O

A)oxidation
B)neutralization
C)precipitation
D)polymerization

Question 21

Name the following type of reaction.
Pb(NO₃)₂ (aq) + 2KCl (aq) → PbCl₂(s) + 2KNO₃(aq)

A)oxidation
B)neutralization
C)precipitation
D)reduction

Question 22

Identify the following reaction as to type.
NaCl(aq) + AgNO₃(aq) → AgCl(s) + NaNO₃(aq)

A)oxidation
B)precipitation
C)neutralization
D)reduction

Question 23

Organic chemistry compounds never include any element such as oxygen, nitrogen, sulfur, phosphorus, fluorine, chlorine, or iodine; they only contain carbon and hydrogen.

Question 24

Styrene (used to make Styrofoam plastics), toluene, and benzene belong to a class of organic compounds known as

A)alkanes
B)alkenes
C)alkynes
D)aromatics

Question 25

The compound C₈H₁₈ is known as octane; to what class of chemical compounds does it belong?

A)acids
B)bases
C)hydrocarbons
D)polymers

Question 26

The field of Organic Chemistry centers on the element

A)hydrogen
B)carbon
C)oxygen
D)phosphorus

Question 27

The half-life (t ½) of a radioactive particle is the time required for

A)½ of the sample to be converted to something else
B)½ of the test population to become ill
C)twice the time for ½ of the sample to be converted to something else
D)none of these

Question 28

The number of bonds a carbon atom tends to form in compounds is

A)1
B)2
C)4
D)8

Question 29

The process by which a large, unstable atom splits into smaller atoms and particles, with the release of enormous amounts of energy, is known as

A)nuclear fission
B)nuclear fusion
C)neutralization
D)none of these

Question 30

The process by which two small atoms combine to form a larger atom, with the release of enormous amounts of energy, is known as

A)nuclear fission
B)nuclear fusion
C)neutralization
D)oxidation-reduction

Question 31

The three main types of radiation are known as

A)alpha, beta, and gamma
B)proton, neutron, and electron
C)solid, liquid, and gas
D)vaporization, melting, and condensation

Question 32

Which is not a correct definition of oxidation?

A)oxygen gain
B)oxygen loss
C)electron loss
D)hydrogen loss

Question 33

Which is not a correct definition of reduction?

A)hydrogen loss
B)hydrogen gain
C)oxygen loss
D)electron gain

Question 34

Which is TRUE of the beta particle?

A)Mass of about zero and charge of -1
B)Mass of about 1 and charge of +1
C)Mass of about 1 and charge of -1
D)Mass of about 4 and charge of +3

Question 35

Which is UNTRUE of gamma rays?

A)mass of about zero
B)mass of about 1 amu
C)charge of zero
D)high energy

Question 36

Which is UNTRUE of the alpha particle?

A)Mass of about 4 amu
B)Charge of 2+
C)Essentially the helium atom's nucleus
D)Essentially the beryllium atom's nucleus