The narrator is a female
Hope this helps
Looking at a ph level color chart, it should be moving to more acidic if it’s positive
A catalyst is when a chemical reaction occurs faster than normal.
The system is unaffected during a catalyst because both forward and reverse reactions are affected, meaning that quilibrium will occur faster nothing will change.
Hope it helped,
BioTeacher101
The answer would be the last one- it separates dissolved substances.
Have a great rest of your day!
