5. express the composition of each atom in shorthand form.
a. zinc-64
b. chlorine-37
c. hydrogen-3
d. calcium-40

How is the composition of a meteorite relevant to finding out the composition of earth's core?

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?