Hydrophobic means ______________.
Not attracted to water
A ____________ is a radioactive substance that can be used to find tumors or blockages in the body.
tracer
Top four elements in living things
carbon,hydrogen, oxygen, nitrogen.
Acids donate ____ when dissolved in water
H+
What is temperature
Av. kinetic E of molecules in substance
The starting materials for chemical reactions are called _________________, while the new substances that are formed are called _______________.
reactants; products
Water stabilizes temperature by_____.
preventing movement
Bases donate _________when dissolved in water
OH-
If pH decreases from 5 to 2, the acid is ______ times stronger.
1000
Water heats and cools more ____________ than other liquids.
slowly
Lipids are _______________ molecules because they have no negative and positive poles.
nonpolar
Bases have a pH______________. Name a base.
Above 7, bleach