a basic unit of living matter separated from its environment by a plasma membrane
a giant molecule in a living organism: a protein, polysaccharide, or nucleic acid
a substance that cannot be broken down to other substances by chemical means. Scientists recognize 92 chemical elements occurring in nature
a substance containing two or more elements in a fixed ratio; an example table salt
structure of atoms
A nucleus, and electron rings
the center of an atom, contains protons and nuetrons
positively charged subatomic particle
negatively charged subatomic particle(smallest thing possible)
neutrally charged subatomic particle
the transfer of electrons from one atom to another
the sharing of electrons with 2 or more
earth's solvent for life, most common substance on earth, without it we would be dead, earth is habitable because of water
structure of water
2 hydrogens(positive) 1 oxygen(negative)
the attraction between molecules of the same kind
when water is the solvent, it is an aqueous solution
the solid in a solution
the liquid in a solution
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