Acompound is found to have an empirical formula of ch2o. if its molecular mass is 60.0 g/mol, what is its molecular formula?

ch2o
c2h4o2
c3h6o3
c4h8o4

What is the number of moles in 15.0 g ash3?

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 melting point of sulfur is 115 °c and its boiling point is 445 °c. what state would sulfur be in at 200 °c?