Reactions of group 2

Question 1

Mg and oxygen observation

Answer 1

burns easily, bright white light

Question 2

Mg and water observe

Answer 2

Vigorous reaction with steam, no reaction with water

Question 3

Mg and HCL observe

Answer 3

reacts vigorously

Question 4

Mg and sulfuric acid observation

Answer 4

reacts vigorously

Question 5

Ca and oxygen observation

Answer 5

difficult to ignite, red flame

Question 6

Ca and water observation

Answer 6

reacts moderately, forms a hydroxide

Question 7

Ca and HCl observations

Answer 7

reacts vigorously

Question 8

Ca and sulfuric acid observation

Answer 8

Reaction slowed by the formation of a sparingly soluble sulfate layer on the metal, stopping hydrogen bubbles from rising

Question 9

Sr and oxygen observation

Answer 9

difficult to ignite, red flame

Question 10

Sr and water observation

Answer 10

reacts rapidly to form a hydroxide

Question 11

Sr and HCl observation

Answer 11

reacts vigorously

Question 12

Sr and sulfuric acid observation

Answer 12

Reaction is quickly stopped by the formation of an insoluble sulfate layer on the metal

Question 13

Ba and oxygen observe

Answer 13

difficult to ignite, green flame

Question 14

Ba and water observe

Answer 14

reacts rapidly to form a hydroxide

Question 15

Ba and HCl observe

Answer 15

Reacts vigorously

Question 16

Ba and sulfuric acid observe

Answer 16

Reaction is quickly stopped by the formation of an insoluble sulfate layer on the metal

Question 17

Group 2 metal + oxygen equation

Answer 17

2M (s) + O2 (g) → 2MO (s)

Where M is any metal in group 2

Question 18

Group 2 metal + water equation

Answer 18

M (s) + 2H2O (l) → M(OH)2 (s) + H2 (g)
Where M= group 2 metal

Question 19

Magnesium and water equation

Answer 19

Mg (s) + 2H2O (l) → Mg(OH)2 (aq) + H2 (g)

Question 20

Group 2 metal and hydrochloric acid equation

Answer 20

M (s) + 2HCl (aq) → MCl2 (aq) + H2 (g)

Question 21

Group 2 metal and sulfuric acid equation

Answer 21

M (s) + H2SO4 (aq) → MSO4 (aq) + H2 (g)

Question 22

Group 2 oxide and water equation

Answer 22

MO (s)+ H2O (l) –> M(OH)2 (aq)

Question 23

Group 2 oxide and hydrochloric acid equation (Mg)

Answer 23

MgO (s) + 2HCL (aq) –> H2O + MgCl2

Question 24

Group 2 oxide and sulfuric acid equation (Mg)

Answer 24

MgO + H2SO4 –> H2O + MgSO4

Question 25

Group 2 hydroxide and Hydrochloric acid (Mg)

Answer 25

Mg(OH)2 + 2HCl –> MgCl2 + 2H2O

Question 26

Group 2 hydroxide and sulfuric acid (Mg)

Answer 26

Mg(OH)2 (s) + H2SO4 (aq) –> MgSO4 (aq) + 2H2O (l)

Question 27

Group 2 carbonate and hydrochloric acid (Mg)

Answer 27

MgCO3 + 2HCl –> MgCl2 + H2O + CO2

Question 28

Group 2 carbonate and sulfuric acid (Mg)

Answer 28

MgCO3 +H2SO4 –> MgSO4 + CO2 + H2O