Science Crossword Puzzle

a substance that takes part in and undergoes change during a reaction
energy liberated by a chemical reaction or absorbed in the formation of a chemical compound
noting or pertaining to a chemical change that is accompanied by a liberation of heat
atomic or molecular species with unpaired electrons on an otherwise open shell configuration
ratios between the amounts in moles of any two compounds involved in a chemical reaction
a balanced condition within a system of chemical reactions
a substance that increases the rate of chemical reaction without itself undergoing any permanent chemical change
a substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
a substance or layer that under lies something or on which some process occurs, in particular
chemical decomposition produced by passing an electric current through a liquid or solution containing ions
type of chemical reaction where two compounds react and the positive ions and negative ions of the two reactants switch places forming two new compounds
high temperature exothermic redox chemical reaction between a fuel and an oxidant, usually atmospheric oxygen
(of a metabolic or chemical process) accompanied by the release of energy
(of a metabolic or chemical process) accompanied by or requiring the absorption of energy, the products being of greater free energy than the reactants