Across
- 2. a substance that readily vaporizes.
- 5. mixture of gases produced by the breakdown of organic matter in the absence of oxygen.
- 7. metalloid with element symbol Te and atomic number 52.
- 8. forming a scalloped shape upon exposure to a hypertonic solution.
- 9. number of electrons needed to fill the outermost electron shell.
- 11. any element found in group IA (first column) of the periodic table.
- 13. state of matter with no defined shape or volume consisting of ions and electrons.
- 15. material which permits the flow of energy
- 20. the process of adding chlorine to drinking water to disinfect it and kill germs.
- 21. discrete packet of electromagnetic radiation.
- 22. a substance that forms ions in aqueous solution.
- 25. irreversible damage to a material or tissue due to a chemical reaction.
- 28. a chemical substance that neutralizes alkalis and turns litmus red.
- 30. distinct form of matter with uniform chemical and physical properties.
- 32. a protein that functions as a catalyst for a chemical reaction.
- 34. method of separating mixtures by removing the liquid layer from a precipitate.
- 38. study of matter and energy and the interactions between them
- 39. scientific study of heat, work, and related properties of mechanical and chemical systems.
- 40. mass per unit volume.
- 41. solution containing a small amount of solute relative to the amount of solvent.
- 42. study of quantitative relationships between substances undergoing a physical or chemical change.
- 44. heterogeneous mixture of solid particles in a fluid.
- 45. process used to separate solids from liquids or gases using a filter medium that allows the fluid to pass through but not the solid.
- 46. substance that is dissolved in a chemical solution.
- 47. very old study and philosophy of how to change basic substances into other substances.
- 48. substance that increases the chemical reaction rate by decreasing its activation energy.
- 50. a substance that forms ions in aqueous solution.
Down
- 1. process characterized by a spontaneous transition of molecules from the liquid phase to vapor phase.
- 3. movement of a fluid from a region of higher concentration to lower concentration.
- 4. any alloy of mercury and one or more other metals.
- 6. an aqueous solution with a pH greater than 7.
- 8. a chemical bond that involves the sharing of electron pairs between atoms.
- 10. amount of matter a substance contains or property of matter that resists acceleration.
- 12. process that uses an electric current to reduce dissolved metal cations so that they form a thin coherent metal coating on an electrode.
- 14. passage of direct current through an ion-conducting solution.
- 16. loss of electrons by an atom, molecule or ion in a chemical reaction.
- 17. thermodynamic property of a system that is the sum of the internal energy and the product of pressure and volume.
- 18. a homogenous mixture in which dispersed particles do not settle out.
- 19. measure of how well molecules stick to each other or group together.
- 23. matter in which atoms, ions, or molecules are packed into an ordered, repeating three-dimensional pattern.
- 24. half reaction in which a chemical species decreases its oxidation number, generally by gaining electrons.
- 26. instrument designed to measure heat flow of a chemical reaction or physical change.
- 27. the chemical breakdown of a substance by bacteria orother microorganisms.
- 29. unit of concentration that is the moles of solute divided by the kilograms of solvent.
- 31. movement of gas through a pore or capillary into a vacuum or another gas.
- 33. substance made by mixing substance together
- 35. binding of an element to itself via covalent bonds
- 36. group of techniques used to separate mixture components by passing the mixture through a stationary phase.
- 37. chemical species formed when two or more atoms form a chemical bond.
- 43. chemical species formed by two or more atoms that share chemical bond.
- 44. component of a solution present in the greatest proportion.
- 49. the positively charged electrode by which the electrons leave a device.