Ocean acidification is the result of an increased amount of carbon dioxide being absorbed in oceans. Water, carbon dioxide, and calcium carbonate (CaCO3) react to form calcium ions and bicarbonate ions (HCO3−). Write a chemical equilibrium equation for the reaction of water, carbon dioxide, and calcium carbonate. Based on your equation, how can you decrease the amount of bicarbonate ions formed?

The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a но reagent a 2. н,о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?