Time to Review… 1.Correct Review Sheet 2.Study for the Final REMEMBER: Chemistry Final Exam: Tuesday, January 20 th (Per. 1, 5, 6) Wednesday, January 21 st (Per. 7) ** NO REVISIONS WILL BE GIVEN FOR THIS EXAM** (but we will review extensively) Last Day to turn in late work or revisions: Tuesday, January 20 th – (Per. 1, 5, 6, 7)

Review Options 1.Vocabulary Alphabet Graphic Organizer (white) – Try to fill as many boxes on the chart with vocabulary words that begin with that letter 2.Chemistry Basics quiz and nomenclature (yellow) 3.Elements and Ionic Bonds (pink) 4.Balancing Equation Practice – Worksheet (green) or envelopes with cards 5.pH and Reaction Rates quiz (white)

1. A substance that changes color in the presence of an acid or a base is: A. an inhibitorC. a catalyst B. an indicatorD. a precipitate 2. The coefficient in a chemical equation tells you how many: A. molecules of a compound are present in the reaction C. ions there are in a compound B. atoms there are of an element D. the number of gained/lost electrons 3. If a test tube feels colder at the end of a chemical reaction, then you know the chemical reaction was: A. exothermicC. a double-replacement reaction B. endothermicD. none of the above 4. If a reaction produces heat, carbon dioxide, and water vapor, it must be a(n): A. synthesis reactionC. decomposition reaction B. single-replacement reactionD. combustion reaction

5. What particle is NOT found in the nucleus of an atom? A. protons C. neutrons B. Electrons D. none of the above 6. In the molecule Mg 3 (PO 4 ) 2 there are __________ atoms of phosphorus: A. oneC. three B. twoD. eight

7. What is the difference between a physical and chemical change? Give an example of each. Chemical changes result in the formation of new substances because of a chemical reaction. Physical change is just a change of shape, size or form without forming new substances. Example: burning paper = chemical Melting ice = physical 8. What’s the difference between a solute and a solvent? The solvent caused the dissolving and the solute is the substance that dissolves away. Water + sugar: water is the solvent and sugar is the solute 9. What is the difference between cohesion and adhesion? Cohesion is water molecules sticking to each other Adhesion is the attraction of water molecules to other substances

10. Balance the following equations by filling in the correct coefficients in front of each molecule and classify each as a synthesis, decomposition, single- replacement, or double-replacement reaction. a. ____ NH 4 NO 3  ____ N 2 O +____ H 2 OReaction Type: _______________________ b. ____ SeCl 6 + ____ O 2  _____SeO 2 + ____ Cl 2 Reaction Type: _______________________ c. ____ O 2 + ____ Cl 2  ____ OCl 2 Reaction Type: _______________________ d. ____ SiO 2 + ____ HF  ____ SiF 4 + ____ H 2 O Reaction Type: _______________________ DECOMPOSITION SINGLE REPLACEMENT DOUBLE REPLACEMENT SYNTHESIS

FormulaIonic or Covalent?Chemical Name Potassium nitride N2ON2O Hg 2 Cl 2 Calcium fluoride P2S5P2S5 Carbon tetrabromide Na 2 S I K3NK3N I I I C C C Dinitrogen monoxide Mercury Chloride Diphosphorus pentasulfide Sodium sulfide CaF 2 CBr 4

12. Interpret the following results: - Red litmus paper stays red - Blue litmus paper turns red Therefore, the substance you tested is ____________________________. 13. How would your answer to #12 be different if the blue litmus paper stayed blue? _____________________________________ An Acid These results mean the substance is neutral

14. Fill in the blanks in the following table. Round the atomic mass to the nearest whole number. Symbol AlNe Name Atomic Mass 226 # of Protons 15 # of Neutrons Total # of Electrons 53 Metal or Non? Group Number # of Valence Electrons Electron Dot Diagram Ion formed

A Atom Adhesion Absolute zero Acid Attraction Atomic mass Atomic number Activation energy B Bonds Bromine Base Boiling Borax Basic

C Color change Chemistry Catalyst Chemical change Covalent Coefficient Combustion Constant Cohesion Condensation Capillary action compounds D Di = 2 Double replacement Decomposition Density Deca = 10 Dissolve DV E Electrons Elements Exothermic Endothermic Evaporation Energy Energy levels

F Friction Formula Fluorine Family Freezing point G Group Gas Gravity Graph Germanium H Hepta = 7 Hexa = 6 Heat Hydrogen Hydroxide Hydronium H3O+ Hydrogen bond Helium

I Ion Inhibitor Indicator Ionic Ionic bond Interactions - ide IV K Kelvin Kinetic Energy L Litmus paper Liquid Law of conservation of mass Light

M Mass Metal Mono = 1 Molecule Mineral Mercury Metallic bond Melting point Metalloid Microscopic mixture N Neutron Neutral Nucleus Negative Non-metal Nona = 9 O Oxide OH- Octa = 8 P Positive Proton Physical change Polar Prefix pH Plasma Precipitate Periodic table

T Tri = 3 Tetra = 4 Temperature Table Toxicity Thermal energy Thermometer Transparent R Reaction Reactants Rate Radioactive S Solution solvent solute Solid solidification Surface tension Suspension Synthesis reaction Subscript superscript Symbol Single replacement