(3 points) what is the best description of the constructive interference of light? a. two waves have the same direction of displacement. b. a longitudinal wave meets a transverse light wave. c. a mechanical wave meets a transverse light wave. d. two waves have displacement in opposite directions.

How can you use chemical equations to predict the products of the reaction you can carry out?

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g