Group 2 Reactions

Question 1

What 3 elements do we look at that the group 2 elements react with

Answer 1

Oxygen, chlorine and water

Question 2

What is the general equation for the reaction of grp2 element with oxygen

Answer 2

2M(s) + O2 —> 2MO(s)

Question 3

What is the general equation for the reaction of grp2 element with chlorine

Answer 3

M(s) + Cl2(g) —> MCl(s)

Question 4

What colour solids are group 2 oxides

Answer 4

White solids

Question 5

What type of flames are expressed when the element is burnt

Answer 5

Different colours

Question 6

How does beryllium react with oxygen in terms of speed

Answer 6

Very slowly

Question 7

What colour are group 2 chlorides

Answer 7

All white

Question 8

What is the general equation of group 2 elements and liquid water

Answer 8

M(s) + 2H2O (l) —> M(OH)2 (s) + H2(g)

Question 9

What is the general formula of group 2 elements reacting with steam

Answer 9

M (s) + H2O (g) —> MO (s) + H2 (g)

Question 10

What type of water do most group 2 elements react with

Answer 10

Cold water

Question 11

Which 2 group 2 elements don’t react with cold water

Answer 11

Be and Mg

Question 12

What type of water does Be or Mg react with

Answer 12

Both react with steam but Mg also reacts with warm water but Be doesn’t

Question 13

When Mg reacts with warm water instead of steam, is it a slower or quicker reaction

Answer 13

Slower

Question 14

When group 2 elements are reacted with water, what happens to the temperature of the solution

Answer 14

The temp increases

Question 15

When group 2 elements are reacted with water, what is seen when there is a reaction

Answer 15

Fizzing and metal dissolving and UI changing to blue/purple

Question 16

When group 2 elements are reacted with water, what happens to the colour of the UI solution

Answer 16

Turns blue / purple

Question 17

How does the level of fizzing change as you move down the group

Answer 17

It becomes more vigorous and violent