4.2.1 Reactions of Group 2 Elements

Question 1

Reactions of Beryllium with Oxygen, Water, Dilute HCL and Dilute H2SO4?

Answer 1

Oxygen - White flame, reluctant
Water - None
Dilute HCL - Rapidly
Dilute H2SO4 - Vigorously

Question 2

Reactions of Magnesium with Oxygen, Water, Dilute HCL and H2SO4?

Answer 2

Oxygen - Bright white flame, easily
Water - Vigorous with steam, white powder, with liquid water very slow
Dilute HCL - Vigorous
Dilute H2SO4 - Vigorous

Question 3

Reactions of Calcium with Oxygen, Water, Dilute HCL and H2SO4?

Answer 3

Oxygen - Red flame, difficult to ignite
Water - Moderately
Dilute HCL - Vigorous
Dilute H2SO4 - Slowed by formation of sulfate layer covering metal

Question 4

Reactions of Strontium with Oxygen, Water, Dilute HCL and H2SO4?

Answer 4

Oxygen - Red flame, difficult to ignite
Water - Rapid
Dilute HCL - Vigorous
Dilute H2SO4 - Quickly stopped by formation of insoluble sulfate layer on metal surface

Question 5

Reactions of Barium with Oxygen, Water, Dilute HCL and H2SO4?

Answer 5

Oxygen - Green flame, difficult to ignite
Water - Vigorous
Dilute HCL - Vigorous
Dilute H2SO4 - Quickly stopped by formation of insoluble sulfate layer on surface of metal

Question 6

Equation of group 2 metals with oxygen?

Answer 6

2M (s) + O2 (g) → 2MO (s)

Sr and Ba can form MO2

Question 7

Equation of group 2 metals with Water

Answer 7

M (s) + 2H2O (l) → M(OH)2 (s) + H2 (g)

Be does not react with water

Question 8

Equation of group 2 metals with dilute HCL

Answer 8

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

Question 9

Equation of group 2 metals with dilute H2SO4

Answer 9

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

SrSO4 and BaSO4 are insoluble

Question 10

Tabulated equations of group 2 metals with Dilute HCL and Dilute H2SO4

Answer 10

Question 11

Tabulated equations of group 2 metals with Oxygen and Water

Answer 11