What is the function of cytochrome c in the electron transport chain?

a. It transports an electron from complex III to complex IV.
b. It oxidizes NADH to NAD+.
c. It reduces two molecules of Q to QH2.
d. It transports two electrons from NADH or FADH2 to complex III.
e. It oxidizes FADH2 to FAD.

What metric units would you use to measure the thickness of a key

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness