Li is in group 1 so it has same number of valence electrons as hydrogen.
hope it helps.
The given question is incomplete. The image present in the question for Reaction A is attached below along with the answer.
Explanation:
Pyruvate molecule reacts with Coenzyme A in the presence of oxygen and it results in the formation of acetyl Coenzyme A and carbon dioxide.
The enzyme pyruvae dehydrogenase helps in catalyzing this reaction. As in this biochemical reaction
gets converted into NADH.
This reaction is shown in the image attached below.
The amount of energy required to change the temperature or phase of a reactant
C is the answer because he wants to know if less force is needed to pull on a slippery surface which reduces friction