Calculate the number of oxygen molecules AND the number of oxygen atoms in 40.5 g of 02. Write in scientific notation.

(I believe I found # of oxygen MOLECULES(7.62x10^23),
but not number of Oxygen ATOMS)

Scientists have developed an explanation of a phenomenon from several verified hypotheses. the explanation has been confirmed through numerous experimental tests.which option best describes this explanation? a. scientific lawb. research questionc. hypothesisd. scientific theory

An atomic nucleus is composed ofa)protons.b)protons and neutrons.c)protons and electrons.d)protons, neutrons, and electrons.

What volume of argon gas is equal to 1.60 grams of argon