Answer: the plum pudding model
Explanation:
for A P E X i just took the test
Ammonia is the most basic and has the highest OH- concentration since it has the highest pH.
A: mouth. Chemical digestion begins in the mouth when enzymes in saliva begin to break down carbohydrates. Most chemical changes in digestion occur in the small intestine. Large molecules of food are broken down into smaller molecules that can be absorbed by our cells.
I believe it's D. A catalyst causes an increases the rate of a reaction without itself being consumed.
