Fill in the blank (2.3)

A what has a pH lower than 7

acid

Water is essentially neutral, with a pH of

7

pH is a measure of the what of a solution

acidity

What is slightly basic with a pH just above 7

blood

100C is waters what point

boiling

Water molecules are held together by what bonds

hydrogen

Ice floats in water because ice has a what density

lower

In water, the what atom attracts electrons more strongly than the what atoms do

oxygen, hydrogen

what is a difference in electrical charge between parts of the same molecule

polarity

In a water molecule,the hydrogen atoms have a what charge

positive

A mixture of two or more substances with the same composition throughout is a what

solution

Waters what gives it unique properties that help explain why it is vital to all living things

structure