AP Bio Chemistry of Life Unit 1

molecule that donates hydrogen ions and increases the concentration of hydrogen ions in a solution

attraction between water molecules and other molecules

negative ion that is formed by an atom gaining one or more electrons

the smallest unit of matter that retains all of the chemical properties of an element

calculated mean of the mass number for an element's isotopes

total number of protons in an atom

molecule that donates hydroxide ions or otherwise binds excess hydrogen ions and decreases the concentration of hydrogen ions in a solution

substance that prevents a change in pH by absorbing or releasing hydrogen or hydroxide ions

amount of heat required to change the temperature of one gram of water by one degree Celsius

occurs because water molecules are attracted to charges on the inner surfaces of narrow tubular structures such as glass tubes, drawing the water molecules to the sides of the tubes

positive ion that is formed by an atom losing one or more electrons

interaction between two or more of the same or different atoms that results in the formation of molecules

process leading to the rearrangement of atoms in molecules

intermolecular forces between water molecules caused by the polar nature of water; responsible for surface tension

substance composed of molecules consisting of atoms of at least two different elements