The normal boiling point of a certain liquid X is 92.1 oC, but when 70 g of (NH4)2SO4 are dissolved in 631 g of X, the solution boils instead at 96.4 oC. Use this information to calculate the molal boiling point elevation constant, Kb, of X.

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

What is the main purpose of patent attorneys? defend the company against legal claims manage financial investments invent new products protect rights to new products and processes

Explain that newton first law,second law and third law of motion?