Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition) - Standalone book
12th Edition
ISBN: 9780321908445
Author: Karen C. Timberlake
Publisher: PEARSON
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Textbook Question
Chapter 3.1, Problem 3.2QAP
Classify each of the following as a pure substance or a mixture:
a. a soft drink
b. propane (C3H3)
c. a cheese sandwich
d. an iron (Fe) nail
e. salt substitute (KC1)
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Classify each of the following as a pure substance or a mixture:a. a soft drink b. propane (C3H8)c. a cheese sandwich d. an iron (Fe) naile. salt substitute (KCl)
3. Which of the following is a pure substance?
a. cream of wheat
b. sodium sulfate
c. lemon ginger tea
d. salt water
e, tomato soup
4. Which of the following are homogeneous mixtures? Which are heterogeneous
mixtures?
a. rubbing alcohol
b. mixture of water and oil
c. mixture of salt and pepper
d. carbonated soft drink
e. human breath
Chapter 3 Solutions
Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition) - Standalone book
Ch. 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. 3.3QAPCh. 3.1 - Prob. 3.4QAPCh. 3.1 - Prob. 3.5QAPCh. 3.1 - Prob. 3.6QAPCh. 3.2 - Prob. 3.7QAPCh. 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. 3.11QAPCh. 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. 3.15QAPCh. 3.3 - Prob. 3.16QAPCh. 3.3 - Prob. 3.17QAPCh. 3.3 - Calculate the unknown temperature in each of the...Ch. 3.3 - Prob. 3.19QAPCh. 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. 3.22QAPCh. 3.4 - Indicate whether each of the following statements...Ch. 3.4 - Prob. 3.24QAPCh. 3.4 - The energy needed to keep a 75-wattlight bulb...Ch. 3.4 - Prob. 3.26QAPCh. 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. 3.31QAPCh. 3.5 - Prob. 3.32QAPCh. 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 - Prob. 3.35QAPCh. 3.6 - Prob. 3.36QAPCh. 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. 3.42QAPCh. 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. 3.45QAPCh. 3.7 - 3.50 Calculate the heat change at 100 °C for each...Ch. 3.7 - Prob. 3.47QAPCh. 3.7 - Prob. 3.49QAPCh. 3.7 - Prob. 3.50QAPCh. 3 - Prob. 3.51UTCCh. 3 - Prob. 3.52UTCCh. 3 - Prob. 3.53UTCCh. 3 - Prob. 3.54UTCCh. 3 - Prob. 3.55UTCCh. 3 - Prob. 3.56UTCCh. 3 - Prob. 3.57UTCCh. 3 - Prob. 3.58UTCCh. 3 - Calculate the energy to heat two cubes (gold and...Ch. 3 - Calculate the energy to heat two cubes (silver and...Ch. 3 - Prob. 3.61UTCCh. 3 - Prob. 3.62UTCCh. 3 - Prob. 3.63AQAPCh. 3 - Prob. 3.64AQAPCh. 3 - Prob. 3.65AQAPCh. 3 - Prob. 3.66AQAPCh. 3 - Prob. 3.67AQAPCh. 3 - Prob. 3.68AQAPCh. 3 - Prob. 3.69AQAPCh. 3 - Prob. 3.70AQAPCh. 3 - Prob. 3.71AQAPCh. 3 - Prob. 3.72AQAPCh. 3 - Prob. 3.73AQAPCh. 3 - Calculate each of the following temperatures in...Ch. 3 - What is 15 °F in degrees Celsius and in kelvins?...Ch. 3 - Prob. 3.76AQAPCh. 3 - Prob. 3.77AQAPCh. 3 - Prob. 3.78AQAPCh. 3 - Prob. 3.79AQAPCh. 3 - On a hot sunny day, you get out of the swimming...Ch. 3 - Prob. 3.81AQAPCh. 3 - Prob. 3.82AQAPCh. 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 - Prob. 3.85AQAPCh. 3 - Prob. 3.86AQAPCh. 3 - The melting point of dibromomethane is 53 °C and...Ch. 3 - Prob. 3.88AQAPCh. 3 - Prob. 3.89CQCh. 3 - A 45-g piece of ice at 0.0 °C is added to a sample...Ch. 3 - Prob. 3.91CQCh. 3 - Prob. 3.92CQCh. 3 - Prob. 3.93CQCh. 3 - A 115-g sample of steam at 100 °C is emitted from...Ch. 3 - Prob. 1CICh. 3 - Prob. 2CICh. 3 - Answer the following for water samples A and B...Ch. 3 - Prob. 4CICh. 3 - Prob. 5CICh. 3 - Prob. 6CI
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- If iron filings are placed with excess powdered sulfur in a beaker, the iron filings are still attracted by a magnet and could be separated from the sulfur with the magnet. Would this combination of iron and sulfur represent amixtureor apure substance?arrow_forwardIf the combination of iron filings and sulfur in Question 25 is heated strongly, the iron reacts with the sulfur to form a solid that is no longer attracted by the magnet. Would this still represent a “mixture”? Why or why not?arrow_forwardHow does a homogeneous mixture differ from a pure substance? How are they similar?arrow_forward
- Which of the following are the same and which are different?a. a substance and a pure substanceb. a heterogeneous mixture and a solutionc. a substance and a mixtured. a homogeneous mixture and a solutionarrow_forward2. Which of the following represent chemical processes? Which represent physical processes? a. Calcium chloride dihydrate (CaCl₂ *2H₂O) slowly heated in a crucible to become calcium chloride (anhydrous). b. A hydrocarbon such as propane (C,H₂) undergoes combustion to power a grill. c. A rock climber's rope becomes frayed and turns the color of the rocks. d. A dog urinates on an air conditioner coil and the coils become corroded.arrow_forward3. Which of the following are pure substances and which are mixtures? a. table sugar b. distilled water C. soft drinks d. oxygen gas (in tank) e. human breatharrow_forward
- 7. Classify each of the following statements as true of false. a. Heterogeneous mixtures must contain three or more substances. b. Compounds cannot have a variable composition. C. Elements are seldom encountered in the "everyday" world. 8. Classify each of these substances as an element, compound, or mixture. a. a sample of "laughing gas" (N₂O) b. the steam coming from a pan of boiling water a bar of deodorant soap C. d. a sample of copper e. f. g. a cup of mayonnaise the helium filling a balloon a. CO h. Co 9. Classify each of the following as a homogeneous mixture or heterogeneous mixture. Black coffee b. A teaspoon of sugar dissolved in a cup of coffee C. Lemonade (with pulp) d. Chocolate chip cookiearrow_forward19. Which of the following substances would be classified as a mixture? a. Water b. Table Salt C. Air d. Glassarrow_forward7. A student combines pure NaCl (sodium chloride) with pure DI water. The resulting is an example of: a. homogeneous mixture b. heterogeneous mixture c. pure substance d. suspensionarrow_forward
- is when two or more substances are mixed evenly. is a combination of substances that are not bonded togathe is matter that has the same fixed composition and properties mixture is when a substance is not mixed evenly, a 1. Substane 2. Water (H20) is known as a 3. А and can be separated by physical processes. 4. A 5. Another name for a homogenous mixture is a 6. A substance that seems to dissolve or disappear is a substances that dissolves is known as the , while 7. What are the three types of solutions? 1. 2. 3. 8. In a solution, water is the solvent. bonds bonds share electrons, while in 9. where compounds form, electrons are gained or lost. 10. The measurement that describes how much solute dissolves in a given amount of solvent is known as 11. The amount of solute compared to the amount of solvent is known as its is a substance that releases positively charged hydrogen ions. 12. Anarrow_forwardClassify the following as mixtures or pure substances . a. a multivitamin tablet b. the blue liquid in your car’s windshield reservoir c. a ham and cheese omelet d. a diamondarrow_forwardClassify each of the following as either a heterogeneous or ahomogeneous mixture.a. tap water b. air c. raisin muffinarrow_forward
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