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basic unit of matter
center of atom
negative charged particle
substance of atom
One of two or more atoms having the same atomic number but different mass numbers.
composed of two or more parts, elements, or ingredients
the electrostatic bond between two ions formed through the transfer of one or more electrons.
An atom or a group of atoms that has acquired a net electric charge by gaining or losing one or more electrons
the bond formed by the sharing of a pair of electrons by two atoms.
the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound.
Van Der Waals forces
weak, nonspecific forces between molecules.
the molecular force between particles within a body or substance that acts to unite them
attraction between molecules of different substance
when 2 or more elements/compounds are physically mixed together but not chemically combined
state of being dissolved.
A substance that is dissolved in another substance (a solvent), forming a solution.
a substance that dissolves another to form a solution: Water is a solvent for sugar.
mixture of water and nondissolved materials
provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is more basic and less than 7 is more acidic);
compound that forms hydrogen ions in solution
compound that produces hydroxide ions in solution
weak acids/base that can react with strong acids and bases and prevents strong sharp sudden changes
small units that can join together with other small units to form polymers
large compound formed from combinations of many monomers
Compounds made up ofcarbon, hydrogen, and oxygen atoms
single sugar molecules
Large macromolecules formed from monosaccrides
Made from carbon and hydrogen atoms. includes fats, oils and waxes
macromollecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus.
monomers of nucleic acids made up of 5 carbon sugar, a phosphate group and a nitrogenous base
contains carbon, hydrogen, oxygen and nitrogen
compound with an amino group
process that changes one set of chemicals into anther set of chemicals
element of compound that enters into a chemical reaction
element or compound produced by a chemical reaction
energy needed to get a reaction started
substnances that speeds up the rate of a chemical reaction
protein that acts as a biological catalyst
reactant of an enzym-catalyzed reaction
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