As a star increases in brightness, which value becomes smaller? a. density b. magnitude c. temperature d. luminosity

If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?

If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted

If a solution contains 3 moles/liter of sodium chloride (nacl, made of sodium ions and chloride ions), what is the osmolarity of this solution