1st Tri Chem X Exam Review Guide Quest: What is Science? What is Science 5 Divisions of Science (Biology, Chemistry, Physics, Earth Science, Environmental Science) Quest: Tools of the Trade Identify & use for: Ring Stand, Metal Ring, Microspatula, Tongs, Wire Gauze, Scoopula, Beaker Tongs, Forceps, Plastic Pipet, Weigh Boat, Beaker, Spot Plate, Flask, Stopper, Plastic Wash Bottle, Thermometer, Graduated Cylinder, Electronic Balance, Test Tube, Test Tub Rack, Test Tub Brush, Rubber Tubing, Bunsen Burner, Stirring Rod, Funnel, Meter Stick, Safety Glasses Symbols: Radioactive, Poisonous, Biohazard, Flammable Solid Quest: Scientific Method Scientific Method steps & explanations Problem, Research, Hypothesis, Experiment, Collect Data, Conclusion, Repeat Hypothesis, Control, Variable, Quantitative Data, Qualitative Data Difference between Generalization, Theory, & Law Quest: Graphing & Crafting X & Y axes location; Which data goes on each Directly Proportional vs. Inversely Proportional Quest: Using the Tools Thermometer – What it measures, 3 units of measurement (Fahrenheit, Celsius, & Kelvin), & how to read it Graduated Cylinder – What it measures, base unit, & how to read it including the meniscus Electronic Balance – What it measures, base unit, how to use it including tare, etc. Meter Stick – What it measures, base unit, & how to read it Base Units for mass, length, volume, temperature Quest: Dense Heads Define & Determine the amount of Matter Mass, Electronic Balance, Grams Weight, Scale, Pounds, Affect of Gravity Volume, for a Block, LxWxH, cm3 Volume for irregular objects, Overflow Can & Graduated Cylinder, mL, mL = cc = cm3 Density – m/v, units (g/mL), comparisons How to know if objects will float on water Quest: Just a Phase Phases (solid, liquid, gas, plasma) On Exam day, you will need to: Hour ____ Date _______ Name ______________________ All phases molecular density, shape, volume, # of collisions, movement, energy & examples Solids Types (crystalline & amorphous solids) Gas Laws & Examples of each Boyles Law-relationship pressure & volume Charles Law-relationship temp. & volume Plasma (location in the universe) Water’s freezing & boiling points in C, F & K Absolute Zero Quest: Phase a Changin Understand & Interpret a Heating / Cooling Curve Define and differences between melting, freezing, boiling, evaporation, vaporization, condensation, sublimation Difference between melting point & freezing point Difference between boiling pt & condensation pt Difference between evaporation & boiling What happens to heat energy & temperature during phase changes Why matter is at certain phases at certain temps Understand & Interpret a Phase Change Diagram Role of pressure & temp on phase changes, Triple Point Quest:Physical vs Chemical Properties & Changes Define & Know the Differences between physical & chemical properties; Include Examples Define & Know the Differences between physical & chemical changes; Include Examples Define Flammability & Magnetism Know the parts of a Chemical Equation / Reaction; Reactant, Yields, Products Describe the Law of Conservation of Mass / Matter The Father of Modern Chem: Antoine Lavoiseir Calculate mass problems in a chemical equation Quest: Classifying Matter Define Matter Differences between Mixtures, Solutions, Compounds or Elements Difference between Heterogeneous vs. Homogeneous Matter Difference between Heterogeneous vs. Homogeneous Mixtures Methods to separate mixtures including Filtration & Distillation Difference between a Solution, Solute & Solvent Identify the Universal Solvent Identify Suspensions, Colloids, Solutions & Alloy Identify Pure Substances, Compounds, Molecules, Element & Atom 1. Return the book if borrowed. 2. Return quests for ½ pt per quest on the exam. 3. Bring something to do once exam is completed. 2. What is a hypothesis? Quest: What is Science? 1. What does Science mean? 3. What is the difference between control & variable? Page 2 2. What are the 5 units of science? What is studied in each? a. a. To compare the boiling point of pure water to the boiling point of salt water, what is the control? b. b. To compare the boiling point of pure water to the boiling point of salt water, what is the variable? c. c. To do quality research, how many variables should you have? d. 4. What is the difference between quantitative data and qualitative data? e. Quest: Tools of the Trade 1. On a scrap piece of paper, draw a picture for 10 of the most used tools. Then state what each is used for. (A) Wire Gauze, (B) Scoopula, (C) Beaker Tongs, (D) Forceps, (E) Pipet, (F) Beaker, (G) Spot Plate, (H) Test Tube, (I) Flask, (J) Thermometer, (K) Funnel, (L) Electronic Balance, (M) Test Tub Rack, (N) Stirring Rod, (O) Graduated Cylinder, (P) Meter Stick, (Q) Safety Goggles, (R) Ring Stand, (S) Metal Ring, (T) Micro-spatula, (U) Funnel, (V) Forceps, (W) Weigh Boat, (X) Bunsen Burner, (Y) Flask, (Z) Stopper a. Give an example of each. 5. Describe the difference between a law, a theory and a generalization? Quest: Thinking Like a Scientist 1. In order, state the steps of the Scientific Method. Explain what you do at each step. Quest: Using the Tools 1. What does a thermometer measure? 1st _________________ - a. What are the 2 base units of measurement? 2nd _________________ 3rd _________________ 4th _________________ 5th _________________ 6th _________________ 7th _________________ - b. State the F temp above & the C temp below each. (cont.)1c. What’s the room temp? ________& _________ c. Determine the length for the 3 lines. Unit? Page 3 2. What does a graduated cylinder measure? ___________________________ 1. _____________ a. What is the base unit of measurement? __________________ 2. _____________ b. What is a meniscus? Include a labeled drawing. _________ 3. _____________ 5. What is dimensional analysis? c. Where do you measure from on the meniscus? d. Write the amounts above each. Include units. What saying helps you remember how to convert? a. What are the abbreviation (letters) to remember the metric units in order? What saying helps you remember these letters? 3. Name this tool. a. What does it measure? 6. Convert the following: b. What is the base unit? a. .00329 mL = ____________________________ L c. Describe how to use this tool. Include using “tare.” b. 345.2 km = _____________________________ m c. 89437.6 g = ____________________________ mg d. 38 mL = _______________________________ cc e. 458.9 kg = _____________________________ mg d. What is the mass of 3 objects? Object 1 f. 6734 g = ______________________________ km Mass (unit?) g. .0000478 L = __________________________ cm3 Quest: Graphing 1. Where is the X axis located on a graph? 2 3 4. Name this tool. a. What data is placed on this axis? 2. Where is the Y axis located on a graph? a. What does it measure? b. What is the base unit? a. What data is placed on this axis? Chirps / Min. 15.0 15.4 15.7 16.3 16.8 17.1 17.3 17.9 18.2 18.4 19.0 19.5 19.7 Temp. ( oF) 70 72 74 76 78 80 82 84 86 88 90 92 94 7. From your graph, predict the following: Chirps Temp. oF ________ 66 ________ 98 Page 4 Quest: Dense Heads 1. What is matter? 2. Complete the chart. Mass Weight Volume Density Define 3. Graph the data for crickets. Properly label each axis. Include units. Title the Graph. b. How do you know? Unit 5. What is a dependent variable? Tool Used a. What is the independent variable on this graph? How Determined 4. What is an independent variable? a. What is the dependent variable on this graph? 3. Describe how you would find the volume for a: a. Liquid? b. How do you know? 6. Is this graph directly or inversely proportional? a. What does a directly proportional graph look like? b. What does an inversely proportional graph look like? b. Rectangular shaped block? c. Irregular shaped block? Draw molecules & arrows to represent energy & movement a. These units for what measurement? 5. What is the density of water? a. Define specific gravity. 6. An object is 16 cc and 15.4 grams. a. What is its density? Density of Molecules Location 4. What is the difference between cubic centimeters, cc, & cm3? Show your work & proper units. b. What is its specific gravity? 2. What is a crystalline solid? a. Draw a molecular picture of it. c. What would the object do in water? _____________ d. How do you know? b. What are 2 examples of it? 3. What is an amorphous solid? a. Draw a molecular picture of it. Most Energy Phase Quest: Just a Phase 1. Complete the chart. Least Energy Shape? 4. What is viscosity? a. Between syrup & water, what is more viscous? Volume? Description of Molecules b. What are 2 examples of it? b. Why? 5. Describe Charles Law. (sign?) a. Describe a real life example of this law in action. Quest: Changing Identities (Phases) 1. What is a phase change? Page 6 2. Describe the following: a. Melting? b. Freezing? 6. Describe Boyles Law. (sign?) c. Boiling? a. Describe a real life example of this law in action. d. Evaporation? e. Vaporization? Temp. Scale 7. Complete the chart for the three temperature scales. Based upon - - f. Condensation? Abbrev. g. Sublimation? Boiling Pt. of H2O Freezing Pt of H2O 2. What is the difference between melting point & freezing point? (Include temp & heat energy.) a. What is absolute zero? b. Draw a picture of atoms at this temperature. 3. What is the difference between boiling point & condensation point? (Include temp & heat energy.) Page 7 __________________________ Diagram F 3 E D 2 B C 1 A __________________________ 1. Label the Diagram. 2. Label the X & Y axis. 2. On the graph, label: a. Solid b. Liquid c. Gas d. Melting e. Melting Point f. Freezing g. Freezing Point 4. What’s the difference between heat energy & temp? h. Vaporization i. Boiling j. Boiling Point k. Condensation l. Condensation Point a. Give 3 examples. 4. What is a chemical change? Quest: Physical vs. Chemical Properties & Charges 1. What is a physical property? a. Give 3 examples. a. Give 3 examples. 5. 2H2O + energy 2H2 + O2 2. What is a chemical property? a. What part of the above is a chemical equation? b. What is a product? a. Give 2 examples. c. What part of the above is the product? b. What is flammability? 3. What is a physical change? d. What is a reactant? e. What part of the above is the reactant? (cont.)f. What does the arrow mean? 6. Describe the Law of Conservation of Mass. a. Who is responsible for this law? b. What title was given to him? Page 8 Classifying Matter Hour ____ Date _______ Name _________________________ 1. Of the following, the one breakfast food that is not homogeneous matter is: 2. Matter that consists of two or more substances put together but not chemically combined is called a(n): 15. The fact that Ne cannot be broken down into a simpler form indicates it is a(n): 16. A salt / sand mixture can be physically separated by: 17. When elements combine chemically: 3. A substance that cannot be chemically changed into a simpler substance is called a(n): 4. The substances that make up a mixture: p. 2 18. All of the following are examples of homogeneous mixtures except: 5. Two or more atoms chemically combined are called a(n): 19. All of the following are true of alloys except they are: 6. A homogenous mixture (whipping cream) that doesn’t separate upon standing yet is not a true solution is called a(n): 20. Separating a solution by boiling points is called: 7. According to makeup, matter can be classified as: 21. KOH is an example of a: 8. The matter that dissolves “good bye” when placed into something is called: 22. H2 is an example of all of the following except: 23. A heterogeneous mixture: 9. A method to separate a heterogeneous mixture is: 10. All of the following are examples of pure substances except: 24. Which of the following is both a compound and a molecule? 11. The smallest particle of an element that has the properties of that element is a(n): 25. A substance which can not be broken down into simpler substances by chemical means is known as a(n): 12. When a substance dissolves and evenly spreads out in another substance it is called a: 26. The difference between a molecule and a compound is: Classifying Matter 13. A mixture with large particles “hanging” in solution (dirt stirred into water) that eventually settles out is called a(n): 14. When salt dissolves in water: 1. Describe how filtration is used to separate things. 2. Describe how distillation separates things. 3. In a labeled picture show the difference between a solvent, solute & solution. a. What is the universal solvent? 4. What are the following: a. Alloy b. Suspension c. Colloid