Question

1) Write down the chemical equation for the following
a) Metals react with oxygen.
b) Metal react with water.​

Answer 1

Answer:

a)metal + oxygen → metal oxide.

b)metal+water➡️metal hydroxide.

note:--Magnesium does not react with cold water. It reacts with hot water to form magnesium hydroxide and hydrogen.

Metals like Aluminium, Iron and zinc does not react either with cold or hot water. But they react with steam to form metal oxide and hydrogen. 3Fe + 4H2O gives rise to Fe3O4 + 4H2.

Answer 2

Answer:

a.) When a metal reacts with oxygen, a metal oxide forms. The general equation for this reaction is: metal + oxygen → metal oxide. Rust is a form of iron oxide and it forms slowly when iron is exposed to air.

b.)metal + oxygen → metal oxide.

Explanation:

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