Final Exam Review

Number 1 What type of reaction is this? 4Al + 3O2 → 2Al2O3 Synthesis Decomposition Single Replacement Double Replacement Combustion

Number 2 What type of reaction in this? C5H12 + 8O2 → 5CO2 + 6H2O Synthesis Decomposition Single Replacement Double Replacement Combustion

Number 3 What type of reaction is this? Zn + 2HCl → H2 + ZnCl2 Synthesis Decomposition Single Replacement Double Replacement Combustion

Number 4 What type of reaction is this? 2KClO3 → 2KCl + 3O2 Synthesis Decomposition Single Replacement Double Replacement Combustion

Number 5 What type of reaction is this? 2NaCl + H2SO4 → 2HCl + Na2SO4 Synthesis Decomposition Single Replacement Double Replacement Combustion

Number 6 What number is added to °C to determine temperature in Kelvin? 1 101.3 273 6.02x1023

Number 7 Convert 735mmHg to kPa. 123.89 kPa 101.3 kPa 760 kPa

Number 8 What volume will 2.5 moles of oxygen gas occupy at 25°C and a pressure of 0.2atm? 267.67 L 305.8 L 432.4 L 621.5 L

Number 9 If the temperature of a balloon with a volume of 45mL is raised from 22°C to 58°C, what will the new volume be if the pressure remains constant? 50.5 mL 100.1 mL 120.2 mL 167.3 mL

Number 10 A student is preparing for a laboratory experiment in which 3 gases will be mixed together. There is a 2L sample of neon gas at a pressure of 2 atm. A 2L sample of carbon dioxide gas at a pressure of 3 atm, and a 2L sample of nitrogen gas at a pressure of 4 atm. All 3 samples are at room temperature. In the experiment the 3 gases will all be transferred to the same rigid 2L container. What is the total pressure the student should expect the gases to exert in the final mixture? 2 atm 6 atm 8 atm 9 atm

Number 11 Which letter on the diagram refers to the solid phase? A C B X

Number 12 Which letter on the diagram refers to the triple point? A B X Y

Number 13 Which letter on the diagram refers to the gas phase? A B C Y

Number 14 What is the normal boiling point of this substance? 0°C

Number 15 Which type of reaction releases heat? Endothermic Exothermic

Number 16 Which of the following is true about the reaction pictured in the following diagram? The reaction is endothermic The reaction is exothermic The reactants are higher in energy than the products No activation energy is required for this reaction

Number 17 Which letter on the above diagram indicates the activation energy? A B C

Number 18 What does a catalyst do in a reaction? It slows it down by lowering the activation energy It slows it down by raising the activation energy It speeds it up by lowering the activation energy It speeds it up by raising the activation energy

Number 19 Which letter indicates the line where there is a solid, the kinetic energy is changing and the equation q=mCΔT is used? A B C D E

Number 20 Which letter indicates the line where there is a liquid, the kinetic energy is changing and the equation is q=mCΔT is used? A B C D E

Number 21 Which letter indicates the line where there is a gas, the kinetic energy is changing and the equation q=mCΔT is used? A B C D E

Number 22 Which letter indicates the line where melting and freezing occur, the potential energy is changing and the equation q=mHf (Hf = 334 J/g°C) is used? A B C D E

Number 23 Which letter indicates the line where boiling and condensation occur, the potential energy is changing and the equation q = mHv (Hv = 2260 J/g°C) is used? A B C D E

Number 24 Calculate the amount of heat absorbed to 63.0 grams of ice at 0°C to water at 0°C? (1 step) 1,546 J 3,440 J 6,680 J 21,042 J

Number 25 How much heat is released when 10 grams of water is cooled from 75°C to 25°C? (1 step) 1,010 J -1,010 J 2,090 J -2,090 J

Number 26 How much heat is absorbed when 47 grams of Magnesium is heated from 21°C to 38°C? (1 step) 38.8 J 7.76 J 817.4 J 1,024J

Number 27 50.0g of silver metal is heated from 25.0°C to 41.0°C by gaining 192J of heat energy. Calculate the specific heat of silver. 0.12 J/g°C 0.24 J/g°C 0.36 J/g°C 0.48 J/g°C

Number 28 How many grams of NH3 can be dissolved in water at 70°C? 6 g

Number 29 If there are 35 grams of NH4Cl in 100 grams of water at 50°C, what can you say about the solution? Unsaturated Saturated Supersaturated

Number 30 A saturated solution of KClO3 is currently in 100 grams of water at 100 °C. Will it be saturated, unsaturated or supersaturated when it is cooled to 10°C? Saturated Unsaturated Supersaturated

Number 31 How much NaNO3 is needed to form a saturated solution at 80°C? 20 g 40 g 60 g 80 g

Number 32 Polar substances dissolve _____________________. Non-polar substances Polar substances Any substance Nothing

Number 33 What volume of 12 M HCl is needed to prepare 0.25 L of 0.20 M HCl? 0.0042 L 0.0067 L 0.0080 L 0.0056 L

Number 34 What is the molarity of a solution made of 7.5 moles of potassium iodide in 2.8 liters of solution? 0.267 M 0.373 M 3.73 M 38.4 M

Number 35 Which of the following is a property of acids? They feel slippery They turn phenolphthalein pink They are sour They turn litmus paper blue

Number 36 Which of the following is a property of bases? They are clear when tested with phenolphthalein They are sour They turn litmus paper red They feel slippery

Number 37 What is the Arrhenius definition of acids? They are proton (H+) donors They are proton (H+) acceptors They are OH- donors They are OH- acceptors

Number 38 What is the Bronsted-Lowry definition of bases? They are proton (H+) donors They are proton (H+) acceptors They are OH- donors They are OH- acceptors

Number 39 In the following reaction, H2S is which of the following? H2S + H2O → HS- + H3O+ Acid Base Conjugate Acid Conjugate Base

Number 40 What is the pH of a solution with a 0.75 M concentration of H+? 0.125 1.24 11.6 13.1

Number 41 If a solution has a pH of 3, which of the following is true? Its acidic Its basic Its neutral There is not enough information

Number 42 Which of the following is the same as a Helium nucleus (42He)? Alpha Particle Beta Particle Gamma Ray Sigma Particle

Number 43 Which of the following is the same as a negatively charged electron (0-1e)? Alpha Particle Beta Particle Gamma Ray Sigma Particle

Number 44 Which of the following is radiant energy that can only be stopped by several feet of concrete or several centimeters of lead? Alpha Particle Beta Particle Gamma Ray Sigma Particle

Number 45 Which of the following is the heaviest (most massive)? Alpha Particle Beta Particle Gamma Particle Sigma Particle

Number 46 Which element is formed from the alpha decay of Polonium-218? Lead Bismuth Astatine Radon

Number 47 Which element is formed from the alpha decay of Polonium-218? Lead Bismuth Astatine Radon