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
