Name:__________________________________________ Period:______ Date:___________ CHEMISTRY STUDY GUIDE (PART 2) 1. Any pure substance that can’t be broken down into any simpler substance by some physical or chemical method and from which all more complex forms of matter are made when they are combined together in different ways and in different amounts is called a(n) ELEMENT. Video: Atomic Structure, Elements, Mixtures and Compounds Crossword Puzzle, P. 9 2. The smallest particle of any element you can have which still possesses all of the physical and chemical properties of that element is called a(n) ATOM of that element. Video: Atomic Structure, Elements, Mixtures and Compounds Crossword Puzzle, P.P. 10, 73 3. At the present time _118 different elements have been discovered and officially recognized and named. Video: Atomic Structure, PP 232-233 4. The unique single letter (Hydrogen – H), two letter (Helium – He) or three letter (Unnilquadiam – Unq) abbreviation for each element that was created by _JONS BERZELIUS is called the chemical __CHEMICAL SYMBOL of that element. Video: Atomic Structure, Elements, Mixtures and Compounds Crossword Puzzle, P. 83 5. A complex form of matter which is composed of a combination of two or more different substances whose physical and chemical properties don’t change after they have been combined together is called a(n) _MIXTURE . Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P. 12 6. Since the substances which were combined together to form a mixture have not changed and have not been bonded together during a chemical reaction to form a new substance they can easily be __SEPARATED APART by some simple physical or mechanical method of separation. Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P. 13 7. If the substances that are combined together to form a mixture are not evenly mixed, distributed or dispersed throughout the mixture then it is called a(n) _ HETEROGENEOUS mixture. Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P. 12 8. If the substances that are combined together to form a mixture are evenly mixed, distributed and dispersed throughout the mixture then it is called a(n) _ HOMOGENEOUS mixture. Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P. 12 9. Some examples of different types of heterogeneous or homogeneous mixtures are: Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P.P. 12-13 A. ___TRAIL MIX (RAISONS, NUTS AND M&M’S B. ___SAND MIXED IN WATER C. __ SMOKE (CARBON PARTICLES MIXED IN THE AIR) (solid – gas mixture) D. __ANTIFREEZE MIXED IN WATER (liquid – liquid mixture) E. CO2 DISSOLVED IN WATER F. __AIR WE BREATHE ______ ______ (CARBONATED WATER OR POP (MIXTURE OF 16 DIFFERENT GASSES) (solid – solid mixture) (solid – liquid mixture) (gas – liquid mixture) (gas – gas mixture) 10. Three different types of liquid mixtures are: Video: Elements, Compounds and Mixtures, Mixtures and Compounds Crossword Puzzle, P.P. 199 - 201 A. __SUSPENSION__________________________ B. __COLLOID _____________________________ C. __SOLUTION____________________________ Elements, 11. A(n) __SUSPENSION is a type of heterogeneous liquid mixture in which the substance that you are adding to and mixing in a liquid rapidly settles to the bottom of the container. Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P. 201 12. Some examples of different types of suspensions. Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P. 201 A. __SAND MIXED IN WATEER_____________________________ B. __GRAVEL MIXED IN WATER___________________________ C. __DIRT MIXED IN WATER_(MUDDY WATER)____________ 13. A(n) _COLLOID _ is a type of homogeneous liquid mixture in which the substance that you are adding to and mixing in a liquid doesn’t completely dissolve in the liquid so often times it settles to the bottom of the container very slowly over a period of time. Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P. 201 14. Some examples of different types of colloids. Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P. 201 A. ___KETCHUP AND MUSTARD_________________________ B. ___HOUSE PAINT_____________________________________ C. ___SOUR CREAM AND CHIP DIP_______________________ 15. A(n) __ SOLUTION_____ is a type of homogeneous liquid mixture in which the substance that you are adding to and mixing in a liquid never settles to the bottom of the container. Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P. 199 16. The two parts of a solution are the _ _SOLUTE _ and _ SOLVENT _. Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P.P. 199 - 200 17. The solid, liquid or gas which is being dissolved in a liquid is called the ___SOLUTE in a solution. Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P.P. 199 - 200 18. The liquid which you’re dissolving a solid, liquid or gas in, is called the __ SOLVENT _ in a solution. Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P.P. 199 - 200 19. If you dissolved salt in water to form a solution the _ _SALT __would be the solute and the ___WATER __ would be the solvent in this solution. Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P.P. 199 - 200 20. __ WATER __ is sometimes called the “Universal Solvent” because it is the most common solvent used in the formation of a solution. Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P. 199 21. Some examples of different types of solutions are: Video: Elements, Compounds and Mixtures, Elements, Mixtures and Compounds Crossword Puzzle, P.P. 199 - 200 A. ___SALT OR SUGAR DISSOLVED IN WATER B. _ _ ANTIFREEZE DISSOLVED IN WATER_______ (liquid solute dissolved in a liquid solvent) C. ___CO2_OR O2_DISSOLVED IN WATER_________ (gas solute dissolved in a liquid solvent) 22. The abbreviation for the word solution is __ SOLN. Crossword Puzzle __ . (solid solute dissolved in a liquid solvent) Elements, Mixtures and Compounds 23. A measurement of the rate at which a substance (solid, liquid or gas) can be dissolved in a liquid is called the _ SOLUBILITY __ of that substance in that liquid. Elements, Mixtures and Compounds Crossword Puzzle, P. 207 24. If you can dissolve a substance (solid, liquid or gas) in a liquid then we say that it is ___SOLUBLE____ in that liquid. (Example: Salt in Water) Elements, Mixtures and Compounds Crossword Puzzle 25 The rule likes dissolve __ LIKES_ __ means that in general organic solutes (substances containing cabon) dissolve best in organic solvents (Example: Motor oil and grease dissolves in gasoline) and inorgranic solutes (substances not containing carbon) dissolve best in inorganic solvents (Example: Salt dissolves in water). 26. If a substance (solid, liquid or gas) can’t be dissolved in a liquid then we say that it is ___INSOLUBLE___ in that liquid. (Example: Oil in Water) Elements, Mixtures and Compounds Crossword Puzzle 27. You can increase the rate at which a solute (solid, liquid or gas) dissolves in a solvent (liquid) by: A. ___STIRRING the solute (solid, liquid or gas) that you are trying to dissolve in the solvent (liquid). B. Increasing the TEMPERATURE of the solvent (liquid) that you are trying to dissolve the solute (solid, liquid or gas) in. C. Increasing the PRESSURE that being placed on the solvent (liquid) that you are trying to dissolve the solute (solid, liquid or gas) in. D. By decreasing the SIZE of the solute (solid) particles that you are trying to dissolve in the solvent (liquid). Mixtures and Compounds Crossword Puzzle, P.P. 208 - 209 28. A solution can be __ UNSATURATED _, ___SATURATED _ , or SUPERSATURATED___ with the solute. Elements, Mixtures and Compounds Crossword Puzzle, P.P. 207, 209 29. If more solute (salt, sugar, etc) can be dissolved in a solvent (water) at room temperature then the solution is called a(n) _ __UNSATURATED ___ solution. Elements, Mixtures and Compounds Crossword Puzzle, P. 207 30. If no more solute (salt, sugar, etc) can be dissolved in a solvent (water) at room temperature then the solution is called a(n) __ _SATURATED____ solution. Elements, Mixtures and Compounds Crossword Puzzle, P. 207 31. If no more solute (salt, sugar, etc) can be dissolved in a solvent (water) at the boiling point of the solution then it is called a(n) ____SUPERSATURATED____ solution. Elements, Mixtures and Compounds Crossword Puzzle, P. 209 32. As the concentration of the solute (salt, antifreeze, etc.) dissolved in the solvent increases the normal boiling point of the solvent will be ____INCREASED_ _ while the normal freezing point of the solvent will be ___ DECREASED_ _. Elements, Mixtures and Compounds Crossword Puzzle, P. 210