how much energy does an electron possess in it's ground state if it is placed in a cube of dimension 50nm​

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

Write the overall equation for the reaction for lithium battery