Chemistry

4. The elements in group 17. They're really reactive (they vigorously gain electrons to complete the octet)
7. compound A compound containing only two elements
9. equation The recipe that describes what you need to do to make a reaction take place.
13. A molecule containing (only) carbon and hydrogen.
15. earth metals Group II on the periodic table.
16. The electrode in which reduction occurs. Reduction is when a compound gains electrons.
18. When a process releases energy.
19. metals Group I on the periodic table.
20. The substance(s) created (produced) in a chemical reaction.
22. dissolved in water
23. A vertical column on the periodic table. Elements in the same group tend to have the same properties. These are also called "families."

1. When the maximum amount of solute is dissolved in a liquid (for a given amount and temperature of the liquid).
2. A measurement of the average kinetic energy of the particles in a system.
3. point The boiling temperature of a substance when the pressure is 1.00 atm.
5. When a solid changes directly into a gas. Dry ice (solid CO2) does this.
6. An organic molecule containing an -OH group
8. When a process absorbs energy from its surroundings
10. When you make a bigger molecule from two or more smaller ones.
11. When a molecule has water molecules attached to it.
12. Changing a liquid to a gas. This happens even when the liquid is below its boiling temperature — “all liquids vaporize”
14. contains more than one atom; often refers to polyatomic ions.
17. number The apparent charge on an atom when it’s in a compound.
20. The state of a compound (solid, liquid, or gas)
21. This is where the electrons in an atom live – regions of high probability of finding electrons.