Which statement correctly compares barium nitrate (Ba(NO3)2) and scandium nitrate (Sc(NO3)3)? (2 points) a
They contain the same number of NO3 groups.

b
They contain the same number of oxygen atoms.

c
They contain the same total number of atoms.

d
They contain the same number of elements.

Aforce of attraction/repulsion due to the spin of electrons what is this force?

Find the empirical formula of each of the following compounds. given mass or for each element in a sample of the compound 3,611 g ca; 6.389 g c1

Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?