revision 1

Question 1

alkanes formula (stronger accent, bigger)

Answer 1

CnH2n+2

Question 2

alkanes: 5

Answer 2

methane
ethane
propane
butane (all gas until here)
pentane (liquid)

Question 3

alkanes and alkenes go up in:

Answer 3

C1H2

Question 4

alkanes mp,bp

Answer 4

increase going down

Question 5

Alkenes formula

Answer 5

CnH2n

Question 6

alkenes names:

Answer 6

ethene (C2H4)
propene
butene
pentene

Question 7

carboxylic acids formula

Answer 7

(CnH(2n+1)COOH

Question 8

carboxylic acids:

Answer 8

methanoic acid
ethanoic acid,
propanoic acid
butanoic acid

Question 9

Polar molecules

Answer 9

are electronegative atoms, which pull electrons strongly towards them. One is slightly – and one is slightly +. this creates a diatomic molecule, H(+)2O(-) is an example of this.

Question 10

how to break covalent bonds in halogen/alkane

Answer 10

sun, uv light

Question 11

ethene (flamable) is fermented fast using

Answer 11

phosphric acid as catalyst or yeast

Question 12

Ethanol is a universal

Answer 12

solvent since it has polar and nonpolar ends so will dissolve both polar and nonpolar molecules.

Question 13

the nane for breaking up hydrocarbons into smaller and more useful bits is

Answer 13

cracking

Question 14

Esters

Answer 14

chemical compounds
formed by bonding alcohol group with carboxylic acids,
losing water molecules.

Question 15

Poylmers 5

Answer 15

Nylon
Terylene
Polythene
Polystryrene
Polychloroethene