Acids And Alkalis

Question 1

What do hydrogen ions form

Answer 1

Acids

Question 2

What do hydroxide ions form

Answer 2

Alkali

Question 3

What do strong acids do in water

Answer 3

Fully dissociates/ ionises

Question 4

Define concentration

Answer 4

Number of particles dissolved in the volume of water

Question 5

How do u test for hydrogen

Answer 5

Hold a lit splint over a test tube with a substance in. If hydrogen is present there will be a squeaky pop snd bubbles

Question 6

What does metal + acid ->

Answer 6

Salt + hydrogen

Question 7

Acid + metal carbonate ->

Answer 7

Salt + water + carbon dioxide

Question 8

Define titration

Answer 8

Volume of acid + alkali needed to neutralise a substance

Question 9

Acid + base ->

Answer 9

Salt + water

Question 10

Define neutralisation

Answer 10

Chemical reaction where an acid base and a base cancel each other out to produce a solution with a ph of 7

Question 11

Name 3 bases

Answer 11

Ammonia, metal hydroxide, metal oxides

Question 12

How to test for co2

Answer 12

Put an acid and metal carbonate through a delivery tube into a test tube eith lime water ans shake. If it goes cloudy co2 us present

Question 13

Name 4 indicators

Answer 13

1. Phenolphthalein
2. Universal indicator
3. Litmus paper
4. Methyl orange

Question 14

Name 3 soluble substances

Answer 14

Sodium, potassium, ammonia

Question 15

Define precipitate

Answer 15

Solids that are suspended in solution

Question 16

Symbol equation for hydrogen ion + hydroxide ion -> water

Answer 16

H+ (aq) + -OH (aq) -> H2o (l)