Someone put some universal indicator paper onto wet soap. The pH is 8. What does this tell you about the soap?

39 What effect does the concentration of OH^- ions have on the nature of a solution? 39 Someone put some universal indicator paper into vinegar. The pH is 3. What does this tell you about the vinegar? 39 State whether a solution is acidic, alkaline or neutral if its pH is:

(i) 9 (ii) 4 (iii) 7 (iv) 1 (v) 10 (vi) 3

40 One of the following is a medicine for indigestion. This is: