Across |
2. | a tentative explanation of a series of observations or of a natural law |
5. | negatively charged subatomic particle found outside the atomic nucleus |
9. | the very small, very dense, positively charged portion of an atom |
10. | the relationship among the quantities of reactants and products involved in chemical reactions |
11. | the dissolving medium of a solution |
13. | the amount of a substance that dissolves in a given quantity of solvent at a given temperature to form a saturated solution |
14. | atoms of the same element containing different numbers of neutrons and therefore having different masses |
15. | a measure of the resistance of fluids to flow |
16. | an insoluble substance that forms in, and separates from, a solution |
18. | a substance composed of two or more elements united chemically in definite proportions |
20. | the number of times per second that one complete wavelength passes a given point |
22. | a measure of how closely individual measurements agree with the correct value |
23. | the study of energy and its transformation |
24. | compound whose molecules have the same overall composition but different structure |
25. | quality of solute present in a given quantity of solvent or solution |
28. | combination of two or more substances |
29. | the process of reacting a solution of an unknown concentration with one of known concentration |
30. | electrically charged atom or group of atoms |
31. | a substance that cannot be separated into simpler substances by chemical means |
33. | the closeness of agreement among several measurements of the same quantity |
34. | a measurement of the amount of material in an object |
36. | process of preparing a less concentrated solution from a more concentrated one by adding solvent |
37. | process by which a metal is oxidized by substances in its environment |
38. | the ratio of an objects mass to its volume |
39. | nonpolar molecule derived from glycerol and fatty acids that is used by organisms for long-term energy storage |