1											2								3
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		25

Across 4. gas pressure constant 5. The smallest particle of an element or compound capable of a stable, independent existence. 6. the temperature scale in wich the freezing point is 0 degrees 10. 1 11. The hydroxide cation (OH-) and the phosphate cation (PO43-) 12. three gas laws combined in one equation 14. Description of a chemical reaction by placing the formulas of the reactants on the left and the formulas of products on the right of an arrow 17. Many representative elements attain at least a share of eight electrons in their valence shells when they form molecular or ionic compounds; there are some limitations. 19. the measure of force applied by another substance (such as a gas) 22. summarizes a hypothesis or group of hypotheses that have been supported with repeated testing. 23. the amount of (molole)of gas 24. this element is used for decomposition 25. 5

Down 1. ab=a+b 2. Specific distribution of electrons in atomic orbitals of atoms or ions 3. to make greater 7. is a chemical compound in which ions are held together in a lattice structure 8. What did we use to messure the volume? 9. constant temperature 13. designated s, p, d or f. 15. a subtance whose aqueaous solutions conduct electricity 16. to make smaller 18. a binary compound of oxygen 20. the capacity or transfer of heat 21. 273