Why is the mole at the center of the road map? a
The map, could be redrawn with another unit at the
center.
b The mole is the simplest quantity to measure.
C Moles of all substances are constant.
d All 2-step calculations must involve calculating
moles first

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.