Which phrase describes a liquid? A. Fixed shape and changing volume
B. Changing shape and fixed volume
C. Fixed shape and volume
D. Changing shape and volume

Enzymes affect the reactions in living cells by changing the

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.

Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg