Anything that has mass and volume
simple substances that cannot be broken down into simpler substances
atoms of the same element that have different numbers of neutrons
A theory that states that all matter is composed of tiny particles called atoms.
atoms with a charge
States that atoms lose, gain or share electrons in order to acquire a full set of eight valence electrons
rare and weak, electron transfer bonds, gives or takes an electron to become stable.
shares electrons rathre than gives.
ionic compound, must release H+ ions to be considered an acid.
ionic compound, must relese OH- in water to be considered base
absorb bases and acids to resist pH change
carbs,proteins,lipids, nucleic acids
compounds with the same formula but different structure
specialized proteins that speed up chemical reactions
polarity of water
water is a polar molecule meaning it has opposite charges on opposite ends. This causes hydrogen bonds to form causing water to stick together.
The process by which molecules move from an area of higher concentration to an area of lower concentration.
diffusion of water through a selectively permeable membrane
the site on an enzyme that attaches to a substrate
the elements or compounds produced by a chemical reaction
elements or compounds that enter into a chemical reaction