E = (6.626 x 10^-34) x (2.998 x 10^8)/(6.32 x 10^-7) what does this equal? based on E= hc/lamda

Ted and emily played a mixed doubles tennis match against jack and brenda. in the second match. ted and brenda played against jack and emily. which type of chemical reaction does the situation demonstrate?

Areaction in which products can react to re-form reactants is

What extra step distinguishes fermentation from glycolysis