Chemical Tests 2

Question 1

Lithium ions burn what colour?

Answer 1

Crimson-red

Question 2

Sodium ions burn what colour?

Answer 2

Yellow-Orange

Question 3

Potassium ions burn what colour?

Answer 3

Lilac

Question 4

Calcium ions burn what colour?

Answer 4

Brick-red

Question 5

What do you use to test for Carbonates?

Answer 5

(Dilute) HCl. Produces carbon dioxide

Question 6

Test for carbon dioxide?

Answer 6

Turns limewater cloudy

Question 7

Test for sulphate ions?

Answer 7

Add (Dilute) HCl, then barium chloride solution. Produces white precipitate (barium sulphate)

Question 8

Test for Halides?

Answer 8

Add dilute nitric acid, then silver nitrate solution

Question 9

Chloride ions give what precipitate with silver chloride?

Answer 9

White

Question 10

Bromide ions give what precipitate with silver chloride?

Answer 10

Cream

Question 11

Iodide ions give what precipitate with silver chloride?

Answer 11

Yellow

Question 12

Test for chlorine gas?

Answer 12

Turns damp litmus paper red. Then bleaches it white

Question 13

Chemical test for water?

Answer 13

anhydrous copper sulphate powder white to blue

Question 14

Physical test for pure water?

Answer 14

Boils at 100 degrees C. Freezes at 0 degrees.