What is the frequency of ultraviolet light with a wavelength of 294 nm? (c = 3.00 x 108 m/s)

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

What mass of glucose is produced when 54g of water react with carbon dioxide

Which of the following warnings would an agricultural chemist tell a farmer who wants to recycle his or her own ammonia? recycling ammonia is a difficult process that sometimes takes weeks. recycling ammonia requires a degree in biochemistry or a related field. recycling ammonia can be harmful because it is highly flammable and toxic. recycling ammonia costs too much money considering the price of the necessary chemicals.