How many moles are in 1.9 x 10^25 molecules of carbon dioxide

Amixture with the same composition throughout is!

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.

If c + di is a point on the circle, then | c + di |=