CHEMICAL REACTION

3. A chemical bond formed through the electrical attraction between oppositely charged ions after the transfer of electrons.
7. A substance that increases the rate of a chemical reaction without being consumed or permanently changed by the process.
8. A chemical reaction that releases energy into its surroundings, typically in the form of heat or light.
9. A type of chemical bond formed when two atoms share one or more pairs of electrons.
11. A term describing a solution in which water is the solvent, often denoted as $(aq)$ in chemical equations.
13. The new substance(s) created as a result of a chemical transformation between reactants.
14. An insoluble solid that emerges and settles out of a liquid solution during a chemical reaction.

1. The laboratory term for the process of drawing liquid up into a pipette tip.
2. The initial point of resistance on a micropipette plunger used to measure and draw up the correct volume of liquid.
4. A chemical reaction that requires the absorption of energy from its surroundings to proceed.
5. A laboratory technique where a solution of known concentration is added to an unknown solution to determine its concentration.
6. The curved upper surface of a liquid in a tube, which must be read at eye level to ensure an accurate measurement.
10. The final press of a pipette plunger (the "second stop") used to fully expel any remaining liquid from the tip.
12. The starting substances present at the beginning of a chemical reaction that undergo change.