Can someone please tell me if equilibrium is established in this considering enthalpy and entropy factor. Mg(s) + 2HCl(aq) →←MgCl2(aq) + H2(g)
∆H= -425J ​

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.

answerambulatory;

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.