12. The molar mass of water is 18.0 g/mol. A mass of 90.0 grams of
water is equivalent to how many
moles?

HELP ASAP!!!

5moles

Explanation:

number of moles=mass/molar mass

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.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

: )