Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
13th Edition
ISBN: 9780134421353
Author: Karen C. Timberlake
Publisher: PEARSON
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Textbook Question
Chapter 3.2, Problem 3.12PP
What type of change, physical or chemical, takes place in each of the following?
a. Pie dough is rolled into thin pieces for a crust.
b. A silver pin tarnishes in the air.
c. A tree is cut into boards at a saw mill.
d. Food is digested.
e. A chocolate bar melts.
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1. When steam condenses,
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Label each of the following statements as true or false. Iffalse, correct the statement.a. Energy can be created or destroyed.b. Energy can be converted from electrical energy to lightenergy.c. Conversion of energy from one form to another canoccur with 100% efficiency.d. All chemical reactions involve either a gain or loss ofenergy.
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Chemical Change
Exothermic or Endothermic
a. A reaction absorbs 550 kJ.
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d. The energy level of the products is higher than that of the reactants.
e. In the body, the synthesis of proteins requires energy.
0.400 moles of sucrose, C12H22O11, contains _________________ C atoms.
12 b. 6.02 x 1023 c. 2.89 x 1024 d. 5.02 x 1022 e. 4.80
Three moles of copper(II) sulfate, CuSO4, contains __________________ moles of O.
4 b. 6.02 x 1023 c. 1.51 x 1023 d. 8 e. 12.04 x 1023 f. 12
Chapter 3 Solutions
Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
Ch. 3.1 - Prob. 3.1PPCh. 3.1 - Prob. 3.2PPCh. 3.1 - Classify each of the following as a pure substance...Ch. 3.1 - Classify each of the following as a pure substance...Ch. 3.1 - Prob. 3.5PPCh. 3.1 - Prob. 3.6PPCh. 3.2 - Indicate whether each of the following describes a...Ch. 3.2 - Indicate whether each of the following describes a...Ch. 3.2 - Describe each of the following as a physical or...Ch. 3.2 - Describe each of the following as a physical or...
Ch. 3.2 - Prob. 3.11PPCh. 3.2 - What type of change, physical or chemical, takes...Ch. 3.2 - Describe each property of the element fluorine as...Ch. 3.2 - Describe each property of the element zirconium as...Ch. 3.3 - Prob. 3.15PPCh. 3.3 - Prob. 3.16PPCh. 3.3 - Prob. 3.17PPCh. 3.3 - Calculate the unknown temperature in each of the...Ch. 3.3 - Prob. 3.19PPCh. 3.3 - a. Water is heated to 145 °F. What is the...Ch. 3.4 - Discuss the changes in the potential and kinetic...Ch. 3.4 - Prob. 3.22PPCh. 3.4 - Indicate whether each of the following statements...Ch. 3.4 - Prob. 3.24PPCh. 3.4 - Convert each of the following energy units: a....Ch. 3.4 - Prob. 3.26PPCh. 3.4 - The energy needed to keep a 75-wattlight bulb...Ch. 3.4 - Prob. 3.28PPCh. 3.5 - Calculate the kilocalories for each of the...Ch. 3.5 - Calculate the kilocalories for each of the...Ch. 3.5 - Using the energy values for foods (see TABLE3.7),...Ch. 3.5 - Using the energy values for foods (see TABLE3.7),...Ch. 3.5 - Prob. 3.33PPCh. 3.5 - Prob. 3.34PPCh. 3.5 - Prob. 3.35PPCh. 3.5 - Prob. 3.36PPCh. 3.6 - If the same amount of heat is supplied to samples...Ch. 3.6 - Substances A and B are the same mass and at the...Ch. 3.6 - Use the heat equation to calculate the energy for...Ch. 3.6 - Use the heat equation to calculate the energy for...Ch. 3.6 - Use the heat equation to calculate the energy, in...Ch. 3.6 - Use the heat equation to calculate the energy, in...Ch. 3.7 - Identify each of the following changes of state as...Ch. 3.7 - Identify each of the following changes of state as...Ch. 3.7 - Calculate the heat change at 0 °C for each of the...Ch. 3.7 - Prob. 3.46PPCh. 3.7 - Identify each of the following changes of state as...Ch. 3.7 - Identify each of the following changes of state as...Ch. 3.7 - Prob. 3.49PPCh. 3.7 - 3.50 Calculate the heat change at 100 °C for each...Ch. 3.7 - Prob. 3.51PPCh. 3.7 - Prob. 3.53PPCh. 3.7 - Prob. 3.54PPCh. 3.7 - Prob. 3.55PPCh. 3.7 - Prob. 3.56PPCh. 3.7 - Prob. 3.57PPCh. 3.7 - Prob. 3.58PPCh. 3 - Prob. 3.59UTCCh. 3 - Prob. 3.60UTCCh. 3 - Prob. 3.61UTCCh. 3 - Prob. 3.62UTCCh. 3 - Prob. 3.63UTCCh. 3 - Prob. 3.64UTCCh. 3 - Prob. 3.65UTCCh. 3 - Prob. 3.66UTCCh. 3 - Calculate the energy to heat two cubes (gold and...Ch. 3 - Calculate the energy to heat two cubes (silver and...Ch. 3 - Prob. 3.69UTCCh. 3 - Prob. 3.70UTCCh. 3 - Prob. 3.71APPCh. 3 - Prob. 3.72APPCh. 3 - Prob. 3.73APPCh. 3 - Prob. 3.74APPCh. 3 - Prob. 3.75APPCh. 3 - Prob. 3.76APPCh. 3 - Prob. 3.77APPCh. 3 - Prob. 3.78APPCh. 3 - Prob. 3.79APPCh. 3 - Prob. 3.80APPCh. 3 - Prob. 3.81APPCh. 3 - Calculate each of the following temperatures in...Ch. 3 - What is 15 °F in degrees Celsius and in kelvins?...Ch. 3 - Prob. 3.84APPCh. 3 - A 0.50-g sample of vegetable oil is placed in a...Ch. 3 - A 1.3-g sample of rice is placed in a calorimeter....Ch. 3 - On a hot day, the beach sand gets hot but the...Ch. 3 - On a hot sunny day, you get out of the swimming...Ch. 3 - Prob. 3.89APPCh. 3 - Prob. 3.90APPCh. 3 - The melting point of dibromomethane is 53 °C and...Ch. 3 - Prob. 3.92APPCh. 3 - Prob. 3.93APPCh. 3 - Prob. 3.94APPCh. 3 - Prob. 3.95APPCh. 3 - Prob. 3.96APPCh. 3 - Prob. 3.97CPCh. 3 - A 45-g piece of ice at 0.0 °C is added to a sample...Ch. 3 - Prob. 3.99CPCh. 3 - Prob. 3.100CPCh. 3 - Prob. 3.101CPCh. 3 - A 115-g sample of steam at 100 °C is emitted from...Ch. 3 - Prob. 3.103CPCh. 3 - 3.104 A 125-g piece of metal is heated to 288 °C...Ch. 3 - A metal is thought to be titanium or aluminum....Ch. 3 - 3.106 A metal is thought to be copper or gold....Ch. 3 - Gold, one of the most sought-after metals in the...Ch. 3 - The mileage for a motorcycle with a fuel-tank...Ch. 3 - Answer the following for water samples A and B...Ch. 3 - Prob. 4CICh. 3 - Prob. 5CICh. 3 - Prob. 6CI
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- A book is held 6 feet above the floor and then dropped. Which statement is true? a.The potential energy of the book is converted to kinetic energy. b.The potential energy of the book is destroyed. c.Kinetic energy is created. d.The total energy of the system will not be conserved.arrow_forwardThe second law of thermodynamics has been called the arrow of time. Explain why this is so.arrow_forward2. For each of the following sketch the universe, define a system and its surroundings and give the direction of energy transfer. a. Methane is burning in a Bunsen burner in a laboratory. b. Water drops, sitting on your skin after swimming, evaporate. c. Two chemicals mixing in a beaker give off heat and the solution warms. d. Your hand gets cold when you touch ice. e. Water boils in a kettle being heated on a stove. f. Water vapor condenses on a cold pipe. g. Water freezes in the freezer.arrow_forward
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