Question 1: Metal + Water(Steam) --> ? + ?

Question

Question 2: Why would it be dangerous to use a water extinguisher to put out fire in a factory that uses large quantities of magnesium or aluminium?

Answer 1

Metal + steam -----> metal oxide + hydrogen

Putting water onto a magnesium (or aluminium) fire generates hydrogen, which is extremely flammable.

Answer 2

Ans.1 In case of aluminium , it forms Al203 (Alluminium Oxide) and Hydrogen gas.
With Zinc -> Zinc Oxide +Hydrogen
With Iron-> Iron(II,III) Oxide + hygrogen
No reaction with copper
Ans. 2 In a factory where magnesium and aluminium are used,the hydrogen gas produced will be in large quantities and may start burning with great pop up sounds. as hydrogen gas is a good fuel with low calorific value.

Answer 3

1) metal oxide + hydrogen gas and 2) when the water reacts with the hot metal the reaction produces hydrogen which is flammable ( which you don't want in a burning building)

Answer 4

it is dangerous because oxygen in water will combine with magnesium or aluminum to form respective oxide and the hydrogen will be formed which is highly flammable

Answer 5

metal hydroxide and hydrogen

M+H2O-----------------------> MOH+ H2
obviously you ne to blnce it

this reaction is explosive in group 1 metals starting with K and working down the group.


because the heated metal would react and burst into flame always use CO2 extinguisher

Answer 6

1: H2 (gas) i.e. hydrogen + O2 (gas) oxygen
2: BOOOOOOOM!!!!