Chapter 11- Acid-base reactions

Question 1

what is an acid

Answer 1

a substance that releases H+ ions when in water as they dissociate. they are proton donors

Question 2

what are some properties of acids

Answer 2

tastes sour
conducts electricity
corrosive
some react strongly with metals
turns blue litmus paper red

Question 3

what is a base

Answer 3

a solution that forms hydroxide ions when in water as they dissociate. they are proton acceptors

Question 4

what are some properties of bases

Answer 4

feels slippery
tastes bitter
corrosive
can conduct electricity
turns red litmus paper blue

Question 5

what is a conjugate base

Answer 5

an acid which has lost a proton becomes the conjugate base of that acid

Question 6

what is a conjugate acid

Answer 6

the base which accepts a proton becomes the conjugate acid of that base

Question 7

what are amphiprotic substances

Answer 7

substcances which can act as both acid or a base depending on what they are reactinv with

Question 8

what are monoprotic acids

Answer 8

acids that can donate only one proton

Question 9

what are diprotic acids

Answer 9

acids that can donate two protons over two stages

Question 10

what are triprotic acids

Answer 10

can donate three protons in three stages

Question 11

what is a neurtralisation reactin

Answer 11

a reaction between an acid and a metal hydroxide (base) is called a neutralisation reaction

Question 12

what are salts

Answer 12

ionic compounds made of a cation and anion

Question 13

what are acid reactions with metal carbonates

Answer 13

carbonate + acid –> a salt + CO2 + water

Question 14

what are acid metal reactions

Answer 14

metal + acid –> salt + hydrogen gas

Question 15

can water products undergo self ionisation

Answer 15

yes

Question 16

what are indicators

Answer 16

weak acids that have a different colour in acidic solutions to their colour in basic solutions