Density will be mass/volume= 0.2/500 = 0.0004
the overall equation for the conversation of pyruvate to acetyl COA is as below
CH3COO-COO- + NAD+ + HS-COA = ch3-COO-S -COA +NADH +CO2
The oxidation of pyruvate led to a conversation of NAD+ to NADH and produces acetyl COA and CO2
Nitrogen gas consists of a diatomic nitrogen atom. So, the correct answer is B.
There are 9 orbitals in the third energy level and 25 orbitals in the fifth energy level.
I hope this helps you.