Identify any five changes from surroundings involves energy change in the form of heat or light.

Using complete sentences, explain how to predict the products and balance the reaction between sulfuric acid and potassium hydroxide.

What reaction is taking place? 02 + c3h8 = h20 + co2

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?