How do you know what atoms are convalant or ionic

ionic bond is formed when two oppositely charged ions attract one another.A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms.

all eukaryotic cell have mitochondria : )

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.