What behavior of light PROVES that it is a wave? Hint: will this ONLY happen because light is a wave, or could it also be true of fast moving particles? * Reflection of light
Absorption of light
Light changes speed in glass and water.
Interference between two or more light waves

Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products