Which choice is a pair of isomers?
a. ch₃ch₂oh and ch₃och₂ch₃
b. 1-heptene and 2-methylhexane
c. ncch₃ and ch₃cnch₃
d. ch₂ch₂ch₂ch₂ch₃ and ch₃ch₂ch₂ch(ch₃)₂
e. methanol and ethene

None

Explanation:

Isomers are organic compounds that have the same molecular formula but different structural formula. What this mean is that these isomers have different arrangement of their atoms. Hence, they belong to different homologous series and exhibit different chemical properties. Hence, it is enough to access whether two different compounds are isomeric using their chemical formula as a yardstick.

Now let us look at our answers. We can see that none of the pairs have the same molecular formula

water is used to store them because it would keep the radiation from getting out in the open and causing harm to the workers

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.