Study the following equation. Fe(s) + 2 HCl(aq) → H2(g) + FeCl2(aq)

What happens to the iron metal when it is reacted in a closed container to produce hydrogen gas in this manner?

Select all that apply.

The rate of the reverse reaction increases as hydrogen gas accumulates. (correct)

The rate of the forward reaction is at its maximum when the reaction first starts.

The rate of the reverse reaction decreases as pressure from the hydrogen gas accumulates.

that tool would be a compass

fe 55.85 g/mol and h2o 18.02 g/mol.

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.