Consider the structures of the constitutional isomers, compound A and compound B. When treated with aqueous acid, compound A undergoes isomerization to give a cis stereoisomer. In contrast, compound B does not undergo isomerization when treated with the same conditions. That is compound B remains in the trans configuration. Explain the difference in reactivity between compound A and compound B

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

Name the element in group 17, period 2. (periodic table)

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent