How many times is co2 denser than h2?
a 22 times
b 1.96 times
c 0.089
d they have the same density because they are both gases
e cannot be calculated

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.