Unit 2 Chemistry Review

2. agent, chemical species that reduces another substance by giving away electrons
5. point, point at which the reaction has occurred as per the stoichiometric ratio of the balanced equation
9. agent, chemical species that oxidises another substance by accepting electrons
10. volume of the solution delivered from the burette to reach the end point of a titration
11. curved upper surface of liquid
12. chemical reaction in which a chemical species loses electrons
13. standard, substance used to make a primary standard solution
15. number, number assigned to an atom that can be used to determine the movement of electrons in redox reactions
16. set of conditions used as a standard for experiments (298 K and 100 kPa)
18. solution, solution with a relatively low amount of solute in comparison to the volume of solution
20. point, point at which a colour change occurs during titration
21. series of metals, organised scale of metals and their cations, ranked according to their strength as reducing and oxidising agents

1. gases, molecules that absorb infrared radiation from the s
3. process of decreasing concentration of a solution by adding more solvent
4. chemical reaction in which a chemical species gains electrons
6. one in one million parts of a solution
7. solution, solution with a relatively high amount of solute in comparison to the volume of solution
8. quantitative technique used to find the concentration and/or amount of substance in a solution
11. displacement reaction, redox reaction in which a more reactive metal displaces a less reactive metal’s cation from solution
14. titres, three or more titres that fall within approximately 0.1 mL of each other
17. capacity, relationship between the heat absorbed by a substance and its temperature change
19. reaction, chemical reaction involving the transfer of electrons between chemical species