4: Inorganic - Gr. 1+2

Question 1

Group 2 + Water

Answer 1

Metal hydroxide and hydrogen

Question 2

Group 2 + Oxygen

Answer 2

Solid white metal oxides

Question 3

Group 2 + Chlorine

Answer 3

Solid white metal chlorides

Question 4

Group 2 Oxide + Water

Answer 4

Metal hydroxide

Question 5

Group 2 Oxide + Dilute Acid

Answer 5

Salt + Water

Question 6

Group 2 Hydroxide + Water

Answer 6

Dissolves

Question 7

Group 2 Hydroxide + Dilute Acid

Answer 7

Salt + Water

Question 8

Solubility trend for group 2 hydroxides

Answer 8

Increases in solubility down the group

Question 9

Solubility trend for group 2 sulfates down the group

Answer 9

Decrease in solubility down the group

Question 10

Sulfate ion

Answer 10

SO₄²⁻

Question 11

Group 1 carbonates thermal decomposition

Answer 11

Thermally stable

Question 12

Group 1 carbonates thermal decomposition exception

Answer 12

Li₂CO₃ - decomposes into lithium oxide + carbon dioxide

Question 13

Nitrate ion

Answer 13

NO₃⁻

Question 14

Nitrite ion

Answer 14

NO₂⁻

Question 15

Group 1 nitrates thermal decomposition

Answer 15

Nitrite and Oxygen

Question 16

Group 1 nitrates thermal decomposition exception

Answer 16

LiNO₃ - decomposes into lithium oxide, nitrogen dioxide and oxygen

Question 17

Group 2 carbonates thermal decomposition

Answer 17

Oxide + Carbon dioxide

Question 18

Group 2 nitrates thermal decomposition

Answer 18

Oxide + Nitrogen dioxide + Oxygen

Question 19

Caesium flame

Answer 19

Blue

Question 20

Rubidium flame

Answer 20

Red

Question 21

Potassium flame

Answer 21

Lilac

Question 22

Sodium flame

Answer 22

Orange/ Yellow

Question 23

Lithium flame

Answer 23

Red

Question 24

Strontium flame

Answer 24

Crimson

Question 25

Calcium flame

Answer 25

Brick - red

Question 26

Barium flame

Answer 26

Green