Chemistry reaction

7. — An insoluble solid that emerges and settles out of a liquid solution during a chemical reaction.
9. — A laboratory technique where a solution of known concentration is added to an unknown solution to determine its concentration.
12. — The laboratory term for the process of drawing liquid up into a pipette tip.
14. — The new substance(s) created as a result of a chemical transformation between reactants.
15. — A chemical reaction that requires the absorption of energy from its surroundings to proceed.

1. — A substance that increases the rate of a chemical reaction without being consumed or permanently changed by the process.
2. — The final press of a pipette plunger (the "second stop") used to fully expel any remaining liquid from the tip.
3. BOND — A chemical bond formed through the electrical attraction between oppositely charged ions after the transfer of electrons.
4. — The curved upper surface of a liquid in a tube, which must be read at eye level to ensure an accurate measurement.
5. OF CONSERVATION OF MASS — The principle stating that mass is neither created nor destroyed during a chemical reaction; the mass of the products must equal the mass of the reactants.
6. — The starting substances present at the beginning of a chemical reaction that undergo change.
8. — A chemical reaction that releases energy into its surroundings, typically in the form of heat or light.
10. BOND — A type of chemical bond formed when two atoms share one or more pairs of electrons.
11. STOP — The initial point of resistance on a micropipette plunger used to measure and draw up the correct volume of liquid.
13. — A term describing a solution in which water is the solvent, often denoted as (aq) in chemical equations.