Number of moles of O2 molecules A 16 mg isb​

"the periodic table is arranged in order of atomic number."

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.

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock

answer seismograph;