A 6.91 L cylinder contains 1.29 mol of gas A and 4.33 mol of gas B, at a temperature of 27.4 °C. Calculate the partial pressure of each gas in the cylinder. Assume ideal gas behavior. What is the total pressure?

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 statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn

Which process describes vaporization that takes place below the surface of a liquid? condensation melting boiling evaporation