random

Question 1

what is a buffer solution made of

Answer 1

weak acid and its salt

Question 2

what are the conditions for a spontaneous reaction

Answer 2

negative enthalpy and positive entropy at all temps

Question 3

what happens when an unsymmetrical alcohol undergoes an elimination reaction

Answer 3

a mixture of isometric products are produced

Question 4

what is biofuel

Answer 4

any fuel made from living organisms or their waste

Question 5

define specific heat capacity

Answer 5

energy required to raise temp of 1g of substance by 1 degree

Question 6

carboxylic acid + carbonate

Answer 6

water, carbon dioxide and a salt

Question 7

carboxylic acid and alcohol

Answer 7

ester and water

Question 8

what are some uses of sulphur dioxide

Answer 8

bleach and food preservatives

Question 9

what does base hydrolysis of esters make

Answer 9

a carboxylate salt and alcohol

Question 10

what does acid hydrolysis of an ester create

Answer 10

acid and an alcohol

Question 11

how is biodiesel made

Answer 11

vegetable oil with methanol and KOH —–> makes glycerol and methyl esters

Question 12

what are some uses for quaternary ammonium salts

Answer 12

fabric cleaners and hair products

Question 13

what is the initial rate of reaction used for

Answer 13

to compare the effect or yhe rate of changing the independent variable

Question 14

define a buffer solution

Answer 14

a solution that resists change to pH wen small amounts of acid or base are added

Question 15

define an alkali

Answer 15

a soluble base

Question 16

define an enantiomer

Answer 16

a non-super imposable mirror image

Question 17

how are addition polymers made

Answer 17

made from alkene is an addition reaction

Question 18

what is the perfect ionic model

Answer 18

where no covalent character is shown

Question 19

what si the mobile phase

Answer 19

the liquid or gas used to move the sample up the stationary phase