Black Stars Chemistry

2. a liquid capable of dissolving another substance
3. heated limestone, usually mixed with water and sand, gravel, etc., to form concrete
6. 1 - 7 on the pH scale
7. a process that involves rearrangement of the molecular or atomic structure of a substance
8. The continuous process by which water is circulated throughout the earth and the atmosphere through evaporation, condensation, precipitation, and the transpiration of plants and animals
12. o cause (a chemical) to be neither an acid nor a base, resulting in the formation of salt
14. a pure substance that is made from a single type of atom; the building blocks for all the rest of the matter in the world
16. any of the gaseous elements helium, neon, argon, krypton, xenon, and radon, occupying Group 0 (18) of the periodic table. They were long believed to be totally unreactive
17. a table of the chemical elements arranged in order of atomic number, usually in rows
18. Burning; a chemical reaction that involves the rapid combination of a fuel with oxygen
19. another name for base
20. rain, snow, hail, sleet
21. COH3
22. a scale to measure how acidic or basic a liquid is.
23. a substance that changes color to indicate the presence of some ion or substance
25. sought the Philosopher's Stone and in the process learned much about the nature of substances
26. building blocks of all matter

1. negatively charge particle that makes up atoms
4. sedimentary rock made up of shells that is used to make cement
5. earth, air, fire and water
9. to form into crystals; cause to assume crystalline form
10. - 7 - 14 on the pH scale
11. an ionic compound that results from the neutralization reaction of an acid and a base.
13. atoms or molecules that have lost or gained electrons
15. the process where plants absorb water through the roots and then give off water vapor through pores in their leaves.
21. science that deals with the composition and properties of substances and of the changes they undergo.
24. the bond resultng from sharing electrons