Answer:
Choice C. Sodium bicarbonate acted as a pH buffer in Solution 2.
Explanation:
Sodium carbonate is used as pH buffering agent. Buffering agent is a type of solution which contains weak base or acid which stabilize the solution when another strong acid or base is added to the solution. If acid is added, the weak base that is present in the solution reacts with it and when base is added, weak acid reacts with it.
Here is an article that can help.
https://healthblog.uofmhealth.org/heart-health/anatomy-of-a-human-heart
A circular movement of water, counter to a main current, causing<span> a small </span>whirlpool<span>. .</span>
The correct answer is the trochlea. The trochlea is a protuberation on the distal humerous that attaches on the trochlear notch of the ulna. The trochlear notch is formed on the proximal head of the ulna; the attachment of the trochlea of the humerus to the trochlear notch forms a hinge joint.
