Consider the following representation of a reaction mechanism. Step 1: A+A → C+E (slow)
Step 2: E + B → A+D (fast)
Overall reaction: A + B → C + D

What should appear in the rate law for the reaction above?

A) only A and B because they are reactants in the overall reaction

B) only C and C because they are products in the overall reaction

C) only A because it is the reactant in the rate-determining step

D) only E and B because they are the reactants in the rate-determining step​

Describe the chemical reaction based on the chemical equation below. also, explain whether the equation is balanced.

Achemical reaction (also known as a chemical change) produces substances that are chemically different from the starting materials. an example of a chemical reaction is the formation of water from hydrogen and oxygen gas.in a physical change, a substance changes its physical appearance but not its chemical identity. an example of physical change is the formation of liquid water from solid water, a familiar process called melting. physically, liquid water looks very different from solid water (ice) but the chemical identity, water, is the same for both. which of following changes that affect the composition of our atmosphere involve physical changes and which involve chemical reactions? oxygen gas changes to ozone during thunderstorms carbon dioxide is produced by the combustion of gasoline in an automobile engine. when coal, oil, and natural gas are decomposed in landsills they produce methane gas. freezing rain develops when a warm air mass overrides a cold air mass. fog forms from water vapor when the temperature drops below the dew point

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?