BC and hydrocarbons : skeletal formula

Question 1

how is drawing a displayed formulae useful ?

Answer 1

when considering shape and size of a molecule

Question 2

what is problem with displayed formulaes ?

Answer 2

this is time consuming and it is easy to draw complex molecules incorrectly

Question 3

what does structural type representation be useful for ?

Answer 3

the psychical properties of a compound often relate to chain length and branching

Question 4

what does skeletal formulae focus on ?

Answer 4

the attention on these reactive parts of molecules

Question 5

when are skeletal formulae often used in ?

Answer 5

constructing mechanisms
–> which are like flow charts that model electron movement in chemical reactions

Question 6

define skeletal formulae

Answer 6

a simplified structural formula drawn by removing hydrogen atoms from alkyl chains

Question 7

what are lines and corner used to indicate ?

Answer 7

alkyl chains and every corner represents a carbon atom

Question 8

what does unsaturated organic chemicals contains ?

Answer 8

at least one carbon-carbon double covalent bond

Question 9

what are hydrocarbons ?

Answer 9

compounds that contain only hydrogen atoms and carbon atoms

Question 10

what does saturated organic compounds only contains ?

Answer 10

single covalent bonds

Question 11

what is propene
a) displayed formulae
b) structural formula
c) skeletal formula

Answer 11

find in book :)

Question 12

what is butane’s
a) displayed formulae
b) structural formula
c) skeletal formula

Answer 12

find in book :)

Question 13

what is cyclohexane
a) displayed formulae
b) structural formula
c) skeletal formula

Answer 13

find in book :)

Question 14

what does unsaturated hydrocarbons that are organic compounds contain ?

Answer 14

only carbon and hydrogen

Question 15

draw benzene as a displayed formula

Answer 15

find in book :)

Question 16

display benzene as a skeletal formula

Answer 16

find in book :)

Question 17

display Kekule model as a displayed formula

Answer 17

find in book :)

Question 18

display Kekule model as a skeletal formula

Answer 18

find in book :)

Question 19

what is butan-2-ol
a) displayed formulae
b) structural formula
c) skeletal formula

Answer 19

find in book :)

Question 20

what is hexanoic acid
a) displayed formulae
b) structural formula
c) skeletal formula

Answer 20

find in book :)

Question 21

what is commonly shown in a skeletal form ?

Answer 21

cyclic compounds

Question 22

what do aromatic hydrocarbons always have ?

Answer 22

a 6-carbon ring with molecular formula C6H6

Question 23

what is the aromatic hydrocarbon ? (structure)

Answer 23

very stable because the electrons are shared across all the carbon atoms

Question 24

what is the molecule rarely involved in ?

Answer 24

chemical reactions

Question 25

what is aromatic hydrocarbons often represented using ?

Answer 25

skeletal formula

Question 26

what is the alcohol group represented by in a skeletal formula ?

Answer 26

-OH in a skeletal formula

Question 27

what is buta-2-nol used in ?

Answer 27

some brake fluids

Question 28

what does buta-2-nol contain ?

Answer 28

saturated secondary alcohol containing 4 carbon atoms with the functional group on the 2nd carbon atoms

Question 29

how is -COOH drawn on a skeletal formulae ?

Answer 29

the double bond between carbon atom and one of the oxygen atoms is drawn as double parallel lines

Question 30

what is hexanoic acid components of ?

Answer 30

vanilla

Question 31

what does hexanoic acid contain ?

Answer 31

contains 6 carbon atoms and has a carboxylic acid functional group at the end of the carbon chain