Energy for the first one and life for the last
It indicates what elements is composed by and how many atoms of one element are linked to the other.
For example, this is the formula for table salt is:
NaCl
The formula indicates that table salt (sodium chloride) is composed by sodium (Na) and chlorine (Cl) on a 1:1 ratio.
Hope it helped,
BioTeacher101
If a major change in pH occurred, the protease enzymes would stop functioning or function very slowly, assuming the original pH was the most optimal pH for them.