Problem 1E: Explain how you could experimentally determine whether the outside temperature is higher or lower... Problem 2E: Identify each of the following statements as being most similar to a hypothesis, a law, or a theory.... Problem 3E: Identify each of the following statements as being most similar to a hypothesis, a law, or a theory.... Problem 4E: Identify each of the underlined items as a part of either the macroscopic domain, the microscopic... Problem 5E: Identify each of the underlined items as a part of either the macroscopic domain, the microscopic... Problem 6E: According to one theory, the pressure of a gas increases as its volume decreases because the... Problem 7E: The amount of heat required to melt 2 lbs of ice is twice the amount of heat required to melt 1 lb... Problem 8E: Why do we use an objects mass, rather than its weight, to indicate the amount of matter it contains? Problem 9E: What properties distinguish solids from liquids? Liquids from gases? Solids from gases? Problem 10E: How does a heterogeneous mixture differ from a homogeneous mixture? How are they similar? Problem 11E: How does a homogeneous mixture differ from a pure substance? How are they similar? Problem 12E: How does an element differ from a compound? How are they similar? Problem 13E: How do molecules of elements and molecules of compounds differ? In what ways are they similar? Problem 14E: How does an atom differ from a molecule? In what ways are they similar? Problem 15E: Many of the items you purchase are mixtures of pure compounds. Select three of these commercial... Problem 16E: Classify each of the following as an element, a compound, or a mixture: (a) copper (b) water (c)... Problem 17E: Classify each of the following as an element, a compound, or a mixture: iron oxygen mercury oxide... Problem 18E: A sulfur atom and a sulfur molecule are not identical. What is the difference? Problem 19E: How are the molecules in oxygen gas, the molecules in hydrogen gas, and water molecules similar? How... Problem 20E: We refer to astronauts in space as weightless, but not without mass. Why? Problem 21E: As we drive an automobile, we don’t think about the chemicals consumed and produced. Prepare a list... Problem 22E: Matter is everywhere around us. Make a list by name of fifteen different kinds of matter that you... Problem 23E: When elemental iron corrodes it combines with oxygen in the air to ultimately form red brown... Problem 24E: As stated in the text, convincing examples that demonstrate the law of conservation of matter... Problem 25E: Yeast converts glucose to ethanol and carbon dioxide during anaerobic fermentation as depicted in... Problem 26E: Classify the six underlined properties in the following paragraph as chemical or physical: Fluorine... Problem 27E: Classify each of the following changes as physical or chemical: condensation of steam burning of... Problem 28E: Classify each of the following changes as physical or chemical: coal burning ice melting mixing... Problem 29E: The volume of a sample of oxygen gas changed from 10 mL to 11 mL as the temperature changed. Is this... Problem 30E: A 2.0-mer volume of hydrogen gas combined with 1.0 liter of oxygen gas to produce 2.0 liters of... Problem 31E: Explain the difference between extensive properties and intensive properties. Problem 32E: Identify the following properties as either extensive or intensive. volume temperature humidity heat... Problem 33E: The density (d) of a substance is an intensive property that is defined as the ratio of its mass (m)... Problem 34E: Is one liter about an ounce, a pint, a quart, or a gallon? Problem 35E: Is a meter about an inch, a foot, a yard, or a mile? Problem 36E: Indicate the SI base units or derived units that are appropriate for the following measurements: the... Problem 37E: Indicate the SI base units or derived units that are appropriate for the following measurements: the... Problem 38E: Give the name and symbol of the prefixes used with SI units to indicate multiplication by the... Problem 39E: Give the name of the prefix and the quantity indicated by the following symbols that are used with... Problem 40E: A large piece of jewelry has a mass of 132.6 g. A graduated cylinder initially contains 48.6 mL... Problem 41E: Visit this PhET density simulation (http://openstaxcollege.org/l/16phetmasvolden) and select the... Problem 42E: Visit this PhET density simulation (http://openstaxcollege.org/l/16phetmasvolden) and select Custom... Problem 43E: Visit this PhET density simulation (http://openstaxcollege.org/l/16phetmasvolden) and select Mystery... Problem 44E: Express each of the following numbers in scientific notation with correct significant figures: 711.0... Problem 45E: Express each of the following numbers in exponential notation with correct significant figures: 704... Problem 46E: Indicate whether each of the following can be determined exactly or must be measured with some... Problem 47E: Indicate whether each of the following can be determined exactly or must be measured with some... Problem 48E: How many significant figures are contained in each of the following measurements? 38.7 g 21018m... Problem 49E: How many significant figures are contained in each of the following measurements? 53 cm 2.05108m... Problem 50E: The following quantities were reported on the labels of commercial products. Determine the number of... Problem 51E: Round off each of the following numbers to two significant figures: 0.436 9.000 27.2 135 1.497103... Problem 52E: Round off each of the following numbers to two significant figures: 517 86.3 6.382103 5.0008 22.497... Problem 53E: Perform the following calculations and report each answer with the correct number of significant... Problem 54E: Perform the following calculations and report each answer with the correct number of significant... Problem 55E: Consider the results of the archery contest shown in this figure. Which archer is most precise Which... Problem 56E: Classify the following sets of measurements as accurate, precise, both, or neither. Checking for... Problem 57E: Write conversion factors (as ratios) for the number of: yards in 1 meter liters in 1 liquid quart... Problem 58E: Write conversion factors (as ratios) for the number of: kilometers in 1 mile liters in 1 cubic foot... Problem 59E: The label on a soft drink boule gives the volume in two units: 2.0 L and 67.6 fl oz. Use this... Problem 60E: The label on a box of cereal gives the mass of cereal in two units: 978 grams and 34.5 oz. Use this... Problem 61E: Soccer is played with a round ball having a circumference between 27 and 28 in. and a weight between... Problem 62E: A woman’s basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20... Problem 63E: How many milliliters of a soft drink are contained in a 12.0-oz can? Problem 64E: A barrel of oil is exactly 42 gal. How many liters of oil are in a barrel? Problem 65E: The diameter of a red blood cell is about 3104 in. What is its diameter in centimeters? Problem 66E: The distance between the centers of the two oxygen atoms in an oxygen molecule is 1.21108 cm. What... Problem 67E: Is a 197-lb weight lifter light enough to compete in a class limited to those weighing 90 kg or... Problem 68E: A very good 197-Ib weight lifter lifted 192 kg in a move called the clean and jerk. What was the... Problem 69E: Many medical laboratory tests are run using 5.0 L blood serum. What is this volume in milliliters? Problem 70E: If an aspirin tablet Contains 325 mg aspirin, how many grams of aspirin does it contain? Problem 71E: Use scientific (exponential) notation to express the following quantities in terms of the SI base... Problem 72E: Complete the following conversions between SI units. 612g = mg 8.160 m ______ cm 3779 g = ________ g... Problem 73E: Gasoline is sold by the liter in many countries. How many liters are required to fill a 12.0-gal gas... Problem 74E: Milk is sold by the liter in many Countries. What is the volume of exactly 1/2 gal of milk in... Problem 75E: A long ton is defined as exactly 2240 lb. What is this mass in kilograms? Problem 76E: Make the conversion indicated in each of the following: the men’s world record long jump, 29 ft 414... Problem 77E: Make the conversion indicated in each of the following: the length of a soccer field, 120 m (three... Problem 78E: Many chemistry conferences have held a 50-Trillion Angstrom Run (two significant figures). How long... Problem 79E: Many chemistry conferences have held a 50-Trillion Angstrom Run (two significant figures). How long... Problem 80E: The gas tank of a certain luxury automobile holds 22.3 gallons according to the owner’s manual. If... Problem 81E: As an instructor is preparing for an experiment, he requires 225 g phosphoric acid. The only... Problem 82E: To prepare for a laboratory period, a student lab assistant needs 125 g of a compound. A bottle... Problem 83E: A chemistry student is 159 cm tall and weighs 45.8 kg. What is her height in inches and weight in... Problem 84E: In a recent Grand Prix, the winner completed the race with an average speed of 229.8 km/h. What was... Problem 85E: Solve these problems about lumber dimensions. To describe to a European how houses are constructed... Problem 86E: The mercury content of a stream was believed to be above the minimum considered safe —1 part per... Problem 87E: Calculate the density of aluminum if 27.6 cm3 has a mass of 74.6 g. Problem 88E: Osmium is one of the densest elements known. What is its density if 2.72 g has a volume of 0.12 1... Problem 89E: Calculate these masses. What is the mass of 6.00 cm3 of mercury, density = 13.5939 g/cm3 What is the... Problem 90E: Calculate these masses. What is the mass of 4.00 cm3 of sodium, density = 0.97 g/cm3 What is the... Problem 91E: Calculate these volumes. What is the volume of 25 g iodine, density = 4.93 g/cm3 What is the volume... Problem 92E: Calculate these volumes. What is the volume of 11.3 g graphite, density = 2.25 g/cm3 What is the... Problem 93E: Convert the boiling temperature of gold, 2966 C, into degrees Fahrenheit and kelvin. Problem 94E: Convert the temperature of scalding water, 54 C, into degrees Fahrenheit and kelvin. Problem 95E: Convert the temperature of the coldest area in a freezer, 10 F, to degrees Celsius and kelvin. Problem 96E: Convert the temperature of dry ice, 77 C, into degrees Fahrenheit and kelvin. Problem 97E: Convert the boiling temperature of liquid ammonia. 28.1 F, into degrees Celsius and kelvin. Problem 98E: The label on a pressurized can of spray disinfectant warns against heating the can above 130 F. What... Problem 99E: The weather in Europe was unusually warm during the summer of 1995. The TV news reported... format_list_bulleted
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