acids and bases

Question 1

the pH scale measures how

Answer 1

acidic or alkali something is

Question 2

acids have

Answer 2

more H+ ions compared to OH- ions

Question 3

alkalis have

Answer 3

more OH- ions compared to H+ ions

Question 4

a neutral substance has

Answer 4

equal concentrations of H+ ions and OH- ions

Question 5

non metal oxides disolve to give

Answer 5

an acid solution

Question 6

metal oxides dissolve to give

Answer 6

an alkali solution

Question 7

a base is

Answer 7

anything that neutralises an acid

Question 8

an alkali is

Answer 8

a soluble base

Question 9

a solution of accurelty known concentration

Answer 9

a standard solution

Question 10

common acids

Answer 10

hydrocholoric - HCl
sulfuric acid - H2SO4
nitric acid - HNO3

Question 11

metal + acid _>

Answer 11

hydrogen and salt

Question 12

metal oxide + acid ->

Answer 12

water + salt

Question 13

metal hydrcoxide + acid ->

Answer 13

water + salt

Question 14

metal carbonate + acid –>

Answer 14

water + salt + carbon dioxide

Question 15

define a neutralisation reaction

Answer 15

when ana cid and base react together to produce water and salt

Question 16

what is a spectator ion

Answer 16

an ion that doesn’t take place in the reaction