Physical Science Unit 7 Crossword

5. A substance that increases the rate of a chemical reaction
8. A reaction involving an acid and a base
10. A chemical reaction with one substance switching from another substance
12. A mixture with substances evenly distributed
13. More than the maximum amount of a solute that can dissolve in a solvent
16. A chemical reaction with two substances switching from one substance to another
17. A substance that produces hydroxide ions
21. The amount of time it takes for half a nuclear sample to decay
22. A substance that produces hydrogen or hydronium ions
23. A chemical reaction with two substances combining to make a large particle
25. Describes how well a substance dissolves into a solution.
26. The breakdown of an unstable atom into a more stable atom
27. The substance that does the dissolving
28. Nuclear decay that produces a helium atom

1. A chemical reaction with a hydrocarbon and oxygen producing water and carbon dioxide
2. Nuclear decay that produces a burst of energy
3. Compounds produced in a reaction
4. The maximum amount of a solute that can dissolve in a solvent
6. Less than the maximum amount of a solute that can dissolve in a solvent
7. The breaking of a large atom into two or more smaller atoms
9. The written expression of a chemical reaction
11. The substance dissolved into a solution
14. Nuclear decay that produces an electron
15. A chemical reaction with a large particle that breaks down into two smaller substances
18. A reaction that absorbs energy from the environment
19. Compounds undergoing reaction
20. The combination of two or more smaller atoms into one larger atom
24. A reaction that releases energy to the environment