What did Robert Millikan's oil drop experiment prove?

A. Atoms are composed of positive charges.

B. It determined the actual mass of the electron.

C. Matter can be conserved.

D. Atoms can be neither created nor destroyed.

What was helium used for in the past?

How does a female go through the menstrual cycle every 28 days?

Balance the equation? c4h10 (g) + ? o2 (g) →? co2 (g) + ? h2o (g), using the smallest possible integers. what is the coefficient of c4h10?

If 10 grams of water are added to 5 grams of salt, how much salt water will be made?

What are the four states of matter and explain them

Which is more concentrated, a solution (1) prepared by dissolving 21.0 g of naf (0.500 mol) in enough water to make 500 ml of solution or a solution (2) prepared by dissolving 10.5 g (0.250 mol) of naf in enough water to make 100 ml of solution?

Hi i need hel does any one know what P3N2 means?.-.

How does thermal energy transfer when a room is heated by a furnace?

De que está echo nuestro sol

Several steps are involved in the industrial production of sulfuric acid. One step involves the oxidation of sulfur dioxide gas to form sulfur trioxide gas. A catalyst is used to increase the rate of production of sulfur trioxide gas.