Astudent observed that the rate of a chemical reaction increased as the temperature of the system increased. which of the following statements best explains why thermal energy caused an increase in the reaction rate?
a. the surface area of the product particles decreased.
b. the collision rate of the reactant particles increased.
c. the concentrations of the reactant particles increased.
d. the concentrations of the product particles decreased.

What happens when the temperature of a solution increases?

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?

Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.