Melatonin is a natural chemical created in your body, so no it is NOT bad for your heart. Melatonin vitamins can be bad for your body but your heart is safe.
Matter with a definite chemical makeup is a pure substance.
The chemical makeup of something describes what chemicals are present in said substance.
Melatonin.
Definitely not. Melatonin does not contain a narcotic. It is strictly used to boost your melatonin levels to help produce sleep.
a spectroscope is the instrument used to determine the chemical makeup of a star.
a chemical formula
The chemical formula is N34K4Na9
Soap will do it.
your chemical makeup
carbohydrates
No. THC's chemical formula is C21H30O2; melatonin's chemical formula is C13H16N2O2. The two are very different compounds.