What is the process in which large hydrocarbons are converted into smaller hydrocarbons, which provide better fuel?

What must happen before a body cell can begin mitotic cell division

Imagine that twenty i.u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?

Air can be considered a mixture. which statement does not explain why?