AP Chemistry

5. A gas law expressed as PV=nRT, relating pressure, volume, temperature, and moles
6. A measure of concentration, defined as moles of solute per liter of solution
10. A substance that speeds up a reaction without being consumed
11. A reaction that releases heat into the surroundings
12. The process of losing electrons in a chemical reaction
13. A type of bond formed through the transfer of electrons from one atom to another
15. A solution that resists changes in pH when small amounts of acid or base are added
17. A gas law stating that pressure and volume are inversely proportional at constant temperature
19. The SI unit for measuring the amount of substance, equal to 6.022 x 10^23 particles
20. A reaction involving the transfer of electrons between species

1. The number of representative particles in one mole of a substance (6.022 x 10^23)
2. The minimum energy required for a chemical reaction to occur
3. The principle stating that a system at equilibrium will adjust to counteract disturbances
4. The ability of an atom to attract electrons in a chemical bond
7. The process of gaining electrons in a chemical reaction
8. The calculation of reactants and products in chemical reactions
9. A measure of the hydrogen ion concentration in a solution, indicating its acidity or basicity
14. A gas law stating that volume and temperature are directly proportional at constant pressure
16. A type of bond where electrons are shared between atoms
18. A reaction that absorbs heat from the surroundings