Ineed . asap! look at the picture below. (3)

I believe the answer would be D.

Sodium loses an electron and chlorine gains an electron.

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.