1) Explain how C2H2 follows the octet rule 2) The compounds CH4, C2H6 and C3H8 all exist but CH3, C2H5 and C3H9 do not. Explain:

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

Which best describes why nh4+ can form an ionic bond with ci-?

Why are people not able to scuba dive in the deep part of the ocean