Chapter 11: Organic Compounds

Question 1

Are organic compounds soluble in water?

Answer 1

No

Question 2

Organic compounds have high melting and boiling points. True or false?

Answer 2

False, low boiling and melting points

Question 3

What type of bonds are organic compounds?

Answer 3

Covalent

Question 4

Are organic compounds flammable?

Answer 4

Yes

Question 5

If organic compounds are not soluble in water, this makes them _____

Answer 5

Nonpolar

Question 6

Which burns easily in air, inorganic or organic compounds?

Answer 6

Organic

Question 7

_____ are organic compounds that contain ONLY _____ and hydrogen.

Answer 7

Hydrocarbons are organic compounds that contain only carbon and hydrogen.

Question 8

In organic molecules, every C must have how many bonds? Why?

Answer 8

Four bonds because on the periodic table carbon is in group 14 which indicates 4 valence electrons

Question 9

_______ hydrocarbons contain only single bonds

Answer 9

Saturated. (“c–c” versus “c=c”)

Question 10

Methane has a _____ shape and the molecular formula is:

Answer 10

Tetrahedral; CH4

Question 11

Ethane’s condensed structural formula is ___–___, and each tetrahedral carbon forms how many covalent bonds?

Answer 11

Ch3–Ch3. Three.

Question 12

Formula for butane?

Answer 12

C4H10

Question 13

____ are hydrocarbons that contain only C–C and C–H bonds

Answer 13

Alkanes

Question 14

Alkanes are compounds that end in ____

Answer 14

ane

Question 15

Number of carbon atoms for: Methane

Answer 15

1

Question 16

Number of carbon atoms for: Ethane

Answer 16

2

Question 17

Number of carbon atoms for: Propane

Answer 17

3

Question 18

Number of carbon atoms for: Butane

Answer 18

4

Question 19

Number of carbon atoms for: Pentane

Answer 19

5

Question 20

Number of carbon atoms for: Hexane

Answer 20

6

Question 21

Number of carbon atoms for: Heptane

Answer 21

7

Question 22

Number of carbon atoms for: Octane

Answer 22

8

Question 23

Number of carbon atoms for: Nonane

Answer 23

9

Question 24

Number of carbon atoms for: Decane

Answer 24

10

Question 25

Ch3---CH3 is:

Answer 25

Ethane

Question 26

CH3--CH2--CH3 is:

Answer 26

Propane

Question 27

CH3--CH2--CH2--CH3 is:

Answer 27

Butane

Question 28

CH3--CH2--CH2--CH2--CH3 is:

Answer 28

Pentane

Question 29

CH3--CH2--CH2--CH2--CH2--CH3 is:

Answer 29

Hexane

Question 30

CH3--CH2--CH2--CH2--CH2--CH2--CH3 is

Answer 30

Heptane

Question 31

CH3--CH2--CH2--CH2--CH2--CH2--CH2--CH3 is

Answer 31

Octane

Question 32

CH3--CH2--CH2--CH2--CH2--CH2--CH2--CH2--CH3 is

Answer 32

Nonane

Question 33

CH3--CH2--CH2--CH2--CH2--CH2--CH2--CH2--CH2--CH3 is

Answer 33

Decane

Question 34

An organic compound with 5 carbon atoms is a ____ alkane

Answer 34

Pentane

Question 35

Molecular formula for Methane:

Answer 35

CH4

Question 36

Molecular formula for Ethane:

Answer 36

C2H6

Question 37

Molecular formula for Propane:

Answer 37

C3H8

Question 38

Molecular formula for Butane:

Answer 38

C4H10

Question 39

Molecular formula for Pentane:

Answer 39

C5H12

Question 40

Molecular formula for Hexane:

Answer 40

C6H14

Question 41

Molecular formula for Heptane:

Answer 41

C7H16

Question 42

Molecular formula for Octane:

Answer 42

C8H18

Question 43

Molecular formula for Nonane:

Answer 43

C9H20

Question 44

Molecular formula for Decane:

Answer 44

C10H22

Question 45

Cycloalkanes are:

Answer 45

Cyclic alkanes

Question 46

Cycloalkanes have ___ fewer hydrogen atoms than the open chain form

Answer 46

two (i.e propane is C3H8, cyclopropane is C3H6)

Question 47

Cyclopropane's line formula is a:

Answer 47

Triangle because C3

Question 48

Cyclobutane's line formula is a:

Answer 48

square (because C4, four corners)

Question 49

Cyclopentane's line formula is a:

Answer 49

pentagon (because C5, 5 points)

Question 50

Cyclohexane's line formula is a:

Answer 50

Hexagon (because C6, six points)

Question 51

When an alkane has four or more carbon atoms, the atoms can be arranged so that a side group called a "branch" or _____ is attached to a carbon chain

Answer 51

Substituent

Question 52

Explain Isomers

Answer 52

Isomers have the same molecular formula but the atoms are arranged differently.

Question 53

_____ have the same number of atoms bonded in a different order

Answer 53

isomers

Question 54

_____ groups are groups of carbon atoms attached to carbon chains

Answer 54

Alkyl

Question 55

____ substituents are ____ atoms attached to the carbon chain. The ones used on the test will be Fluoro, Chloro, Bromo, and Iodo

Answer 55

Halo; halogen. Expect Bromo and Chloro on the exam, definitely.

Question 56

Formula and substituent of CH3--

Answer 56

Meth-yl

Question 57

Formula and substituent of CH3--Ch2--

Answer 57

Eth-yl

Question 58

Formula and substituent of Ch3--Ch2--Ch2--

Answer 58

Prop-yl

Question 59

Alkanes with 9-17 carbons are _____ with higher boiling points and are found in motor oils

Answer 59

Liquids

Question 60

Alkanes with 18 or more carbon atoms, known as _____, are waxy solids at room temperature.

Answer 60

paraffins

Question 61

Do Alkanes with strong C---C bonds release energy when the bonds are broken during combustion reactions?

Answer 61

Yes

Question 62

Alkanes with strong C---C bonds react with oxygen gas to make CH2 and water in combustion reactions. True or False?

Answer 62

False, C---C bonds react with O2 gas and CO2 in combustion reactions, not CH2.