4c. Alkanes

Question 1

4.19 What is the general formula for alkanes

Answer 1

CnH2n+2

Question 2

4.20 Why are alkanes classified as saturated hydrocarbons

Answer 2

Because they only have single carbon-carbon bonds, there are no double bonds

Question 3

4.21
What is the empirical formula for
methane

ethane

propane

butane

pentane.

Answer 3

CH4

CH3

C3H8

C2H5

C5H12

Question 4

4.21 What is the general formula for Butane

Answer 4

Cn H2n+2

Question 5

4.21 What is the molecular formula for Propane

Answer 5

C3 H8

Question 6

4.21 What is the molecular formula for Pentane

Answer 6

C5H12

Question 7

4.21 What is the molecular formula for Methane

Answer 7

CH4

Question 8

4.21 What is the molecular formula for Ethane

Answer 8

C2 H6

Question 9

4.21 What is the molecular formula for Butane

Answer 9

C4H10

Question 10

4.21What is the structural formula for Methane

Answer 10

CH4

Question 11

4.21What is the structural formula for Ethane

Answer 11

CH3-CH3

Question 12

4.21What is the structural formula for Propane

Answer 12

CH3-CH2-CH3

Question 13

4.21What is the structural formula for Butane

Answer 13

CH3-CH2-CH2-CH3

Question 14

4.21What is the structural formula for Pentane

Answer 14

CH3-CH2-CH2-CH2-CH3

Question 15

4.21What is the displayed formula for Methane

Question 16

4.21What is the displayed formula for Ethane

Question 17

4.21What is the displayed formula for Propane

Question 18

4.21What is the displayed formula for Butane

Question 19

4.21What is the displayed formula for Pentane

Question 20

4.21 What are Alkanes a homologous series of

Answer 20

hydrocarbons

Question 21

4.21 How many bonds can the hydrogen atoms make

Answer 21

one

Question 22

4.21 Are alkanes generally reactive or unreactive compounds

Answer 22

Unreactive

Question 23

4.22 In the presence of ultraviolet (UV) radiation, methane reacts with bromine in what kind of reaction

Answer 23

A substitution reaction

Question 24

4.22 What is the word equation of the reaction of methane and bromine in the presence of ultraviolet light

Answer 24

methane + bromine → bromomethane + hydrogen bromide

Question 25

4.22 What is the chemical equation for the substitution reaction of methane and bromine

Answer 25

CH4 + Br2 → CH3Br + HBr

Question 26

4.22 Chlorine will also react with alkanes in the presence of ultraviolet light to form what

Answer 26

chloromethane

Question 27

4.22 What is the word equation of the reaction of methane and chlorine in the presence of ultraviolet light

Answer 27

methane + chlorine → chloromethane + hydrogen chloride

Question 28

4.22 What is the chemical equation for the substitution reaction of methane and chlorine

Answer 28

CH4 + Cl2 → CH3Cl + HCl

Question 29

What family do the products of substitution reactions belong to

Answer 29

The products belong to a family called halogenoalkanes or haloalkanes