Answer:
3
Explanation:
It is based on empirical evidence
Answer:
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. Thus the sum of pH and pOH is 14
Explanation:
It should be <em>Ultraviolet rays </em>because they are moderate in energy.