If the atmospheric pressure in the laboratory is 1.2 atm, how many moles of gas were in each syringe?

Air syringe

Room temp water 21.1 degree Celsius

Volume 5.0

Helium syringe

Room temp water 21.1 degree Celsius

Volume 5.1

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

How do scientists think that gravity affected the formation of our solar system?

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same