Hanah Tomlinson

3. a quantity associated with a thermodynamic system, expressed as the internal energy of a system plus the product of the pressure and volume of the system, having the property that during an isobaric process, the change in the quantity is equal to the heat transferred during the process.
5. a certain quantity or amount of one thing considered in relation to a unit of another thing and used as a standard or measure.
6. a substance that causes or accelerates a chemical reaction without itself being affected.
10. (in chemistry) clustered or gathered together closely.
15. rapid oxidation accompanied by heat and, usually, light.
17. electron an electron of an atom, located in the outermost shell (valence shell) of the atom, that can be transferred to or shared with another atom.
18. of the deposit that forms on the surface of a metal as it oxidizes.
20. (on a macroscopic scale) a function of thermodynamic variables, as temperature, pressure, or composition, that is a measure of the energy that is not available for work during a thermodynamic process.
21. (in chemistry) any substance that undergoes a chemical change in a given reaction.
22. chandeliers principle stating that if a constraint
23. surface area the outside part or uppermost layer of something (often used when describing its texture, form, or extent).

1. a substance that decreases the rate of or stops completely a chemical reaction.
2. of the combination of ideas to form a theory or system.
4. the state of being decomposed; decay.
7. energy the least amount of energy required to activate atoms or molecules to a state in which they can undergo a chemical reaction.
8. chemistry) a substance obtained from another substance through chemical change.
9. the quality or property of being soluble; relative capability of being dissolved.
11. chemical reaction reactants form products that, in turn, react together to give the reactants back.
12. a measure of the warmth or coldness of an object or substance with reference to some standard value.
13. any device, material, or apparatus used as a shield, cushion, or bumper, especially on machinery.
14. the exertion of force upon a surface by an object, fluid, etc., in contact with it:
16. replacement reaction a reaction in which one element is substituted for another element in a compound.
19. activated complex that assembly of atoms which corresponds to an arbitrary infinitesimally small region at or near the col of a potential energy surface.