Chemical Reactions

2. A chemical substance that has a soapy feel and accepts hydrogen ions (H+)
7. Two or more atoms bonded together
11. The breaking down of a substance, particularly metals, due to a reaction with the environment
12. number The number of particles in the nucleus (protons plus neutrons)
13. Two or more different atoms bonded together
14. A reaction in which two soluble solutions produce an insoluble solid
15. A reaction in which a substance burns with oxygen to produce heat
19. A reaction in which the product is neither acidic or basic
20. The horizontal rows on a periodic table

1. A reaction in which one reactant breaks up into two or more parts
3. A chemical substance that has a sour taste and releases hydrogen ions (H+)
4. Number The number of protons in an atom
5. A negatively charged subatomic particle that is found in a cloud around the nucleus of an atom.
6. A neutrally charged subatomic particle found in the nucleus of an atom.
8. A substance that contains only one type of atom
9. The smallest building blocks of matter.
10. A positively charged subatomic particle found in the nucleus of an atom.
16. Atoms of the same element with different numbers of neutrons
17. The vertical rows on a periodic table
18. The combining power of an atom due to the number of electrons in the outer shell