unit 2

Question 1

how is a condensation reaction form

Answer 1

when two molecules are joined together with the elimination of a small molecule e.g. H20

Question 2

how does a hydrolysis reaction form

Answer 2

when a molecule reacts with water to break down smaller molecules

Question 3

what is 3 uses of esters

Answer 3

solvents flavours perfumes

Question 4

what is not a use of an ester

Answer 4

toothpaste

Question 5

what catalyst is used to form an ester

Answer 5

concentrated sulfuric acid

Question 6

what is the use of a paper towel when making an ester

Answer 6

acts as a condenser to alcohol vapour and forces it to run back into reaction mixture

Question 7

what are the observations from an ester being formed

Answer 7

fizzing
oily droplets on surface
sweet smell

Question 8

how are fats and oils formed

Answer 8

formed from glycerol reacting with 3 fatty acids

Question 9

what is the structural name for glycerol

Answer 9

propan - 1,2,3 -triol

Question 10

how are soaps produced

Answer 10

by the alkaline hydrolysis of edible fats and oils

Question 11

what is the cleaning action of soap

Answer 11

soap molecules have an ionic head which is hydrophilic and soluble in water.
Soap molecules have a non polar tail which is hydrophobic and insoluble in water.
Agitation separates oil from the surface