In aqueous solutions there are three forms of glucose: the a-form (36%), the b-form (64%) and a trace amount of the open-chain form. at equilibrium, the alpha and beta cyclic forms are interconverted by way of the openchain structure. explain (a) why the cyclic forms exist predominately in solutions, and (b) why the b-form is more abundant than the a-form.

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.

Why is it possible for different microorganisms to extract energy not only from carbohydrates and other biological molecules but from a large variety of substances?