An enzyme is participating in a general acid-base catalysis reaction with an optimal reaction pH of 6.0. If acid is added to the environment reducing the pH to 3, what is the likely impact to the rate of reaction

A. The rate of the reaction is likely to increase as the proton concentration has decreased.
B. The rate of the reaction is likely to remain consistent as this change in environment will not effect the kinetics.
C. The rate of the reaction is likely to decrease as the pH is out of optimal catalytic range
D. The rate of the reaction is likely to increase as the pH is within the optimal catalytic range

The best answer is "C"

The rate of the reaction is likely to decrease as the pH is out of optimal catalytic range

Explanation:

General acid-base reactions are are affected by the pH changes. An adjustment in pH from the ideal pH range of 6.0, will reduce the overall reaction rate.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.