Analysing Substances

Question 1

Flame tests are used to identify metal ions

True or false

Answer 1

True

Question 2

Flame test

Lazy cripples 
Sell yellow 
Poison like 
Cucumbers really
Bloody great

Answer 2

Lithium- crimson 
Sodium- yellow 
Potassium- lilac
Calcium- red 
Barium- green

Question 3

True or false

Aluminium, calcium and magnesium ions form blue participates with sodium hydroxide

Answer 3

False!!

It’s white

Question 4

What element such as aluminium, calcium or magnesium only dissolves in excess sodium hydroxide solution

Answer 4

Aluminium hydroxide precipitates

Question 5

Copper II iron II and iron III form what coloured precipitates with sodium hydroxide solution

Answer 5

Copper- blue
Iron II green
Iron III brown

Question 6

What do carbonates react with to form carbon dioxide

Answer 6

Dilute acids

Question 7

True or false

Carbon dioxide produces a deep red coloured precipitate with limewater

Answer 7

False!!

White again as it turns lime water cloudy

Question 8

Halide ions in solution produce precipitates with silver nitrate solution in the present of what

Answer 8

Dilute nitric acid

Question 9

What colour is..
Silver chloride
Silver bromide
Silver iodide

Answer 9

White
Cream
Yellow

Question 10

Sulphate ions in solution produce what precipitate with barium chloride solution in the presence of dilute hydrochloric acid

Answer 10

White

Question 11

How can the volumes of acid and alkali solutions that react with each other be measured

Answer 11

Titration using suitable indicator