Determine the mass in grams of 3.88 × 10²¹ atoms of copper. (The mass of one mole of copper is 63.55 g.)

What layer of the atmosphere is directly above the troposphere?

What is the polyatamic ion of thiosulfate

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.