A gas sample is help at a constant temperature, Whay happens to the pressure of the sample if the volume is doubled and the number of molecules is doubled ?

Nothing  

Explanation:

To solve this problem, we can use the Combined Gas Laws:

Data:

p₁ = p₁; V₁ =   V₁; n₁ =      n₁; T₁  = T₁

p₂ = ?;   V₂ = 2V₁; n₂ = 2n₁; T₂ =  T₁

Calculation:

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.