The following acid/base reaction is also called a neutralization reaction because it forms water, which has a neutral pH. What type of reaction does this also represent?
HC104 (aq) + Sr(OH)2 (aq) → Sr(ClO4)2 (aq) + H20 (1)
(A) Synthesis
(B) Double replacement
(C) Single replacement
(D) Combustion

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

The table lists pressure and volume values for a particular gas. which is the best estimate for the value of v at p = 7.0 × 103 pascals?

Is it safe to take 450mg of diphenhydramine hydrochloride?