What must pyruvic acid be converted to before it can enter the citric acid cycle?

a. acetyl coa
b. lactic acid
c. ethyl alcohol
d. nadh

What does the symbol (–hfus) indicate in a phase change?

How is the shape of the poem “peer” connected to its meaning?

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?