When a wave passes from one medium to a second medium, part of the wave is transmitted into the second medium, and part of the wave is reflected back into the first medium. when a wave splits in this manner, the amplitudes of the transmitted and reflected 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

Which of the following is a pure substance? airbloodcopperwood

Atriple covalent bond involves two atoms sharing three pairs of electrons. true false