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Matter anything with mass that occupies space
Energy the capacity to do work (motion)
Potential Energy Stored energy
Kinetic Energy matter in motion
Chemical Energy potential energy stored in chemical bonds
Electrical Energy movement of charged particles
Composition of matter elements carbon, oxygen, hydrogen, nitrogen
what is protons(+), and neutrons combined? Atomic Mass
Electrons orbit around nucleus, have a negative charge
how many electrons are are on each level of the nucleus? 1st- 2, 2nd- 8, 3rd- 8
ionic bond one or more electrons are transferred from one molecule to another
cation ionic bond positively charged ion
anion ionic bond negatively charged ion
covalent bond shared electrons
polar covalent bond unequal sharing of pairs of electrons
non-polar covalent bond equal sharing of pairs of electrons
Chemical reactions (4) synthesis, decomposition, exchange, redox
Synthesis creates new molecules
decomposition breaks down molecules
exchange molecules exchange atoms
redox occurs when food is broken down to form ATP
exergonic (exothermic) release energy
endergonic (endothermic) consume energy
what does "exo" mean outside
what does "endo" mean inside
rate of chemical reaction is influenced by (4) temperature, particle size, concentration, catalysts
biochemistry consists of.. Organic, inorganic
what are a few inorganic compounds? (5) water, salt, acid, bases, and buffers
Water universal solvent
solvent dissolves many chemicals in our body
salts cations and anions- dissolves water
acids and bases acids- release H+ easily bases- accept H+ easily
buffers are weak acids or bases
Created by: carolinegurnsey