The graph below shows how the pressure and volume of a gas vary when the
number of moles and the temperature of the gas are held constant. What
happens to the pressure inside a sealed syringe of gas as the volume of the
syringe increases?

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

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never

How many grams are in 68.2 molecules of br2?