A mothball, composed of naphthalene (C10H8), has a mass of 6.42 g. How many naphthalene molecules does it contain?

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

At element makes up all organic compounds?