Question

Cola has a ph of 3.5. this means that it has an excess of _______ ions and would be called a(n)________.

Answer 1

Cola has a pH of 3,5, this means that it has an excess of H⁺ ions and would be called an acid.
H⁺ is cationic form of atomic hydrogen, the hydrated form of the hydrogen cation is the hydronium ion H₃O⁺(aq). 
pH = -log c(H⁺).
When pH is below 7, solution is acidic, pH greater that 7 solution is basic and pH equals to 7, solution is neutral.

Answer 2

Answer: hydrogen ions , acid

Explanation:-

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

Acids have pH ranging from 1 to 6.9, bases have pH ranging from 7.1 to 14 and neutral solutions have pH equal to 7.

$pH=-\log [H^+]$

Given:

$pH=3.5$

Thus as pH is less than 7, the solution is acidic.