Question

question 13
what would you add to a solution to change its ph from 3 to 8?
100% blue dye solution
hydrochloric acid (hcl)
bogen’s universal indicator
sodium hydroxide (naoh)

Explanation:

A solution with pH 3 is acidic and a solution with pH 8 is basic. To increase the pH from acidic to basic, a base should be added. Sodium hydroxide (NaOH) is a strong base. Blue - dye solution is just a coloring agent, hydrochloric acid is an acid which would lower the pH further, and a universal indicator is used for indicating pH but not for changing it.

Answer:

Sodium hydroxide (NaOH)