1 The Nature Of Chemistry 2 Chemical Compounds 3 Chemical Reactions 4 Energy And Chemical Reactions 5 Electron Configurations And The Periodic Table 6 Covalent Bonding 7 Molecular Structures 8 Properties Of Gases 9 Liquids, Solids, And Materials 10 Fuels, Organic Chemicals, And Polymers 11 Chemical Kinetics: Rates Of Reactions 12 Chemical Equilibrium 13 The Chemistry Of Solutes And Solutions 14 Acids And Bases 15 Additional Aqueous Equilibria 16 Thermodynamics: Directionality Of Chemical Reactions 17 Electrochemistry And Its Applications 18 Nuclear Chemistry 19 The Chemistry Of The Main-group Elements 20 Chemistry Of Selected Transition Elements And Coordination Compounds expand_more
1.1 Why Care About Chemistry? 1.2 Cleaning Drinking Water 1.3 How Science Is Done 1.4 Identifying Matter: Physical Properties 1.5 Measurements, Units, And Calculations 1.6 Chemical Changes And Chemical Properties 1.7 Classifying Matter: Substances And Mixtures 1.8 Classifying Matter: Elements And Compounds 1.9 Nanoscale Theories And Models 1.10 The Atomic Theory 1.11 Communicating Chemistry: Symbolism 1.12 The Chemical Elements 1.13 The Periodic Table 1.14 The Biological Periodic Table 1.15 Modern Chemical Sciences Chapter Questions expand_more
Problem 1QRT Problem 2QRT: Choose an object in your room, such as a cell phone or television set. Write down five qualitative... Problem 3QRT Problem 4QRT Problem 5QRT Problem 6QRT Problem 9QRT: Which of these statements are qualitative? Which are quantitative? Explain your choice in each case.... Problem 10QRT: Which of the these statements are qualitative? Which are quantitative? Explain your choice in each... Problem 11QRT: The elements sulfur and bromine are shown in the photograph. Based on the photograph, describe as... Problem 12QRT: In the accompanying photo, you see a crystal of the mineral calcite surrounded by piles of calcium... Problem 13QRT Problem 14QRT Problem 15QRT Problem 16QRT: Suppose a room is 18 m long, 15 m wide, and the distance from floor to ceiling is 2.9 m. What is the... Problem 17QRT Problem 18QRT Problem 19QRT Problem 20QRT Problem 21QRT: Perform these calculations and express the result with the proper number of significant figures. (a)... Problem 22QRT Problem 23QRT: A 105.5-g sample of a metal was placed into water in a graduated cylinder, and it completely... Problem 24QRT Problem 25QRT: An unknown sample of a metal is 1.0 cm thick, 2.0 cm wide, and 10.0 cm long. Its mass is 54.0 g. Use... Problem 26QRT: Calculate the volume of a 23.4-g sample of bromobenzene, density = 1.49 g/mL. Problem 27QRT: Calculate the mass of a sodium chloride crystal if the dimensions of the crystal are 10 cm thick by... Problem 28QRT: Calculate the volume occupied by a 4.33-g sample of iron.
Problem 29QRT: In each case, identify the italicized property as a physical or chemical property. Give a reason for... Problem 30QRT Problem 31QRT: In each case, describe the change as a chemical or physical change. Give a reason for your choice.... Problem 32QRT: In each case, describe the change as a chemical or physical change. Give a reason for your... Problem 33QRT Problem 34QRT Problem 35QRT Problem 36QRT: Identify each of these as a homogeneous or a heterogeneous mixture.
An asphalt (blacktop) road
Clear... Problem 37QRT: Devise and describe an experiment to (a) Separate table salt (sodium chloride) from water. (b)... Problem 38QRT Problem 39QRT: For each of the changes described, decide whether two or more elements formed a compound or if a... Problem 40QRT: For each of the changes described, decide whether two or more elements formed a compound or if a... Problem 41QRT: Classify each of these as an element, a compound, a heterogeneous mixture, or a homogeneous mixture.... Problem 42QRT Problem 43QRT Problem 44QRT Problem 45QRT Problem 46QRT Problem 47QRT Problem 48QRT Problem 49QRT Problem 50QRT Problem 51QRT Problem 52QRT Problem 53QRT Problem 54QRT Problem 55QRT: Write a chemical formula for each substance, and draw a picture of how the nanoscale particles are... Problem 56QRT Problem 57QRT Problem 58QRT Problem 59QRT Problem 60QRT Problem 61QRT Problem 62QRT Problem 63QRT: Name and give symbols for three transition metals in the fourth period. Look up each of your choices... Problem 64QRT: Name two halogens. Look up each of your choices in a dictionary, in a book such as The Handbook of... Problem 65QRT Problem 66QRT Problem 67QRT Problem 68QRT Problem 69QRT Problem 70QRT Problem 71QRT Problem 72QRT Problem 73QRT Problem 74QRT Problem 75QRT Problem 76QRT Problem 77QRT: The label on a bale of mulch indicates a volume of 1.45 ft3. The label also states that the mulch in... Problem 78QRT Problem 79QRT Problem 80QRT: The cancer drug cisplatin contains 65.0% platinum. You have a 1.53-g sample of the compound;... Problem 81QRT Problem 82QRT: The density of gaseous helium at 25 C and normal atmospheric pressure is 1.64 104 g/mL. At the same... Problem 83QRT Problem 84QRT Problem 85QRT Problem 86QRT: You can figure out whether a substance floats or sinks if you know its density and the density of... Problem 87QRT Problem 88QRT Problem 89QRT Problem 90QRT Problem 91QRT Problem 92QRT: Which two elements from this list exhibit the greatest similarity in physical and chemical... Problem 93QRT Problem 94QRT Problem 95QRT Problem 96QRT Problem 97QRT Problem 98QRT Problem 99QRT Problem 100QRT: Using Table 1.1, but without using your calculator, decide which has the larger mass:
20. mL butane... Problem 101QRT Problem 102QRT: At 25 C the density of water is 0.997 g/mL, whereas the density of ice at 10 C is 0.917 g/mL. (a) If... Problem 103QRT Problem 104QRT Problem 105QRT Problem 106QRT Problem 107QRT: Answer these questions using figures (a) through (i). (Each question may have more than one... Problem 108QRT Problem 109QRT Problem 110QRT Problem 111QRT Problem 112QRT Problem 113QRT Problem 114QRT Problem 115QRT Problem 116QRT Problem 118QRT Problem 119QRT Problem 120QRT Problem 121QRT Problem 122QRT Problem 123QRT: The element magnesium reacts with the element oxygen to form a white solid compound, magnesium... Problem 124QRT Problem 125QRT Problem 126QRT: When 12.6 g calcium carbonate (the principal component of chalk) is treated with 63.0 mL... Problem 127QRT Problem 1.ACP: Suppose you are trying to get lemon juice and you have no juicer. Some people say that you can get... Problem 1.BCP Problem 1.CCP Problem 1.DCP Problem 1.ECP Problem 1.FCP: Some scientists think there are living things smaller than bacteria (New York Times, January 18,... Problem 1.GCP Problem 1.HCP format_list_bulleted