Consider the following chemical reaction of bromothymol blue indicator. it appears yellow in undissociated form and blue in its dissociated aqueous solution. hc2h3o2(aq) mc012-1.jpg h+(aq) + c2h3o2–(aq) yellow blue what will be the color of the solution if a large amount of h2co3 is added? the solution will remain yellow. the solution will turn blue. the solution will turn pink. the solution will turn green.

Answer is: The solution will remain yellow.

Balanced chemical reaction: HC₂H₃O₂(aq) ⇄ H⁺(aq) + C₂H₃O₂⁻(aq).

Carbonic acid dissociation in water: H₂CO₃ ⇄ H⁺(aq) + HCO₃⁻(aq).

According to Le Chatelier's Principle the position of equilibrium moves to counteract the change.

The position of equilibrium will move so that the concentration of hydrogen cations (H⁺) decreases and than concetration of acid (HC₂H₃O₂) increases.

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.