A polyunsaturated fatty acid contains more than one

Identify and describe the three ways that mutations affect organisms.

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.