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basic chemistry

unit 2, chapter 3-4

proton positive charged sub-atomic particle
neutron neutral charge sub-atomic particle
electron negatively charged subatomic particle
nucleus hold the mass of the atom; proton and neutrons
hydrogen bond chemical connection between the Hydrogens of water molecules
density weight per unit of volume (g/L)
carbohydrate contains only carbon, hydrogen, and oxygen; smallest unit is glucose
protein made of amino acids; muscles, enzymes, hormones, hair, skin, nails...
lipid fats, waxes, and oils; not water soluble
nucleic acid makes up DNA; adenine, thymine, cytosine and guanine