reactions with water

Question 1

describe the reaction of magnesium with warm water.
state the reaction.
state type of flame

Answer 1

slower reaction
there is no flame
Mg+2H2O-> Mg(OH)2+ H2

Question 2

what do the hydroxides that are produced do to the water?

Answer 2

make it more alkaline

Question 3

state obsevations as you go down the group.

Answer 3

• metal dissolves faster
• soloution heats up more
• white precipitate is formed less

Question 4

state the reaction of magnesium with steam

and state what colour flame it burns with.

Answer 4

burns with awhite flame.

Mg+H2O-> MgO + H2