what is the empirical formula of an unknown 60 g sample that contains roughly 40% carbon, 53% oxygen, and 7% hydrogen by mass

Identify two types of chemical bonding in the source of dietary potassium

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.

Which property of water causes water drops to bead on a freshly waxed car?