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Science
Chemistry
Part A What is the atomic number of the element located in group 16, period 2 of the periodic table? Enter the atomic number. > View Available Hint(s)
Part A What is the atomic number of the element located in group 16, period 2 of the periodic table? Enter the atomic number. > View Available Hint(s)
BUY
Chemistry
10th Edition
ISBN:
9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
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1 Chemical Foundations
2 Atoms, Molecules, And Ions
3 Stoichiometry
4 Types Of Chemical Reactions And Solution Stoichiometry
5 Gases
6 Thermochemistry
7 Atomic Structure And Periodicity
8 Bonding: General Concepts
9 Covalent Bonding: Orbitals
10 Liquids And Solids
11 Properties Of Solutions
12 Chemical Kinetics
13 Chemical Equilibrium
14 Acids And Bases
15 Acid-base Equilibria
16 Solubility And Complex Ion Equilibria
17 Spontaneity, Entropy, And Free Energy
18 Electrochemistry
19 The Nucleus: A Chemist's View
20 The Representative Elements
21 Transition Metals And Coordination Chemistry
22 Organic And Biological Molecules
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Chapter Questions
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Problem 6RQ: Compare and contrast the multiplication/division significant figure rule to the significant figure...
Problem 7RQ: Explain how density can be used as a conversion factor to convert the volume of an object to the...
Problem 8RQ: On which temperature scale (F, C. or K) docs 1 degree represent the smallest change in temperature?
Problem 9RQ: Distinguish between physical changes and chemical changes.
Problem 10RQ: Why is the separation of mixtures into pure or relatively pure substances so important when...
Problem 1ALQ: a. There are 365 days per year, 24 hours per day, 12 months per year, and 60 minutes per hour. Use...
Problem 2ALQ
Problem 3ALQ: When a marble is dropped into a beaker of water, it sinks to the bottom. Which of the following is...
Problem 4ALQ
Problem 5ALQ: You may have noticed that when water boils, you can see bubbles that rise to the surface of the...
Problem 6ALQ: If you place a glass rod over a burning candle, the glass appears to turn black. What is happening...
Problem 7ALQ: Which characteristics of a solid, a liquid, and a gas are exhibited by each of the following...
Problem 8ALQ: Sketch a magnified view (showing atoms/molecules) of each of the following and explain: a. a...
Problem 9ALQ: Paracelsus, a sixteenth-century alchemist and healer, adopted as his slogan: "The patients are your...
Problem 10ALQ: What is wrong with the following statement? "The results of the experiment do not agree with the...
Problem 11ALQ: Why is it incorrect to say that the results of a measurement were accurate but not precise?
Problem 14ALQ: You have a 1.0-cm3 sample of lead and a 1.0-cm3 sample of glass. You drop each in separate beakers...
Problem 15ALQ: Consider the addition of 15.4 to 28. What would a mathematician say the answer is? What would a...
Problem 16ALQ: Consider multiplying 26.2 by 16.43. What would a mathematician say the answer is? What would a...
Problem 17ALQ: True or false? For mathematical operation performed on two measurements, the number of significant...
Problem 18ALQ: Is there a difference between a homogeneous mixture of hydrogen and oxygen in a 2:1 ratio and a...
Problem 19Q: The difference between a law and a theory is the difference between what and why. Explain.
Problem 20Q: The scientific method is a dynamic process. What does this mean?
Problem 21Q: Explain the fundamental steps of the scientific method.
Problem 22Q
Problem 23Q: A measurement is a quantitative observation involving both a number and a unit. What is a...
Problem 24Q: To determine the volume of a cube, a student measured one of the dimensions of the cube several...
Problem 25Q: What are significant figures? Show how to indicate the number one thousand to 1 significant figure,...
Problem 26Q: A cold front moves through and the temperature drops by 20 degrees. In which temperature scale would...
Problem 28Q: In a multiple-step calculation, is it better to round off the numbers to the correct number of...
Problem 29Q: Is the density of a gaseous substance larger or smaller than the density of a liquid or a solid at...
Problem 30Q: Give four examples illustrating each of the following terms. a. homogeneous mixture b. heterogeneous...
Problem 31E: Which of the following are exact numbers? a. There are 100 cm in 1 m. b. One meter equals 1.094...
Problem 32E: Indicate the number of significant figures in each of the following: a. This book contains more than...
Problem 33E: How many significant figures are there in each of die following values? a. 6.07 1015 b. 0.003840 c....
Problem 34E: How many significant figures are in each of the following? a. 100 b. 102 c. 103 d. 100. e. 0.0048...
Problem 35E: Round off each of the following numbers to the indicated number of significant digits, and write the...
Problem 36E: Use exponential notation to express the number 385,500 to a. one significant figure. b. two...
Problem 37E: You have liquid in each graduated cylinder shown: You then add both samples to a beaker. How would...
Problem 38E: The beakers shown below have different precisions. a. Label the amount of water in each of the three...
Problem 39E: Evaluate each of the following, and write the answer to the appropriate number of significant...
Problem 40E: Perform the following mathematical operations, and express each result to the correct number of...
Problem 41E: Perform the following mathematical operations, and express the result to the correct number of...
Problem 42E: Perform the following mathematical operations, and express the result to the correct number of...
Problem 43E: Perform each of the following conversions. a. 8.43 cm to millimeters b. 2.41 102 cm to meters c....
Problem 44E: a. How many kilograms are in 1 teragram? b. How many nanometers are in 6.50 x 102 terameters? c. How...
Problem 45E: Perform the following unit conversions. a. Congratulations! You and your spouse are the proud...
Problem 46E: Perform the following unit conversions. a. 908 oz to kilograms b. 12.8 L to gallons c. 125 mL to...
Problem 47E: Use the following exact conversion factors to perform the stated calculations: 512 yd -= 1 rod 40...
Problem 48E: Although the preferred SI unit of area is the square meter, land is often measured in the metric...
Problem 49E: Precious metals and gems are measured in troy weights in the English system: 24 grains 1 pennyweight...
Problem 50E: Apothecaries (druggists) use the following set of measures in the English system: 20 grains ap = 1...
Problem 51E: For a pharmacist dispensing pills or capsules, it is often easier to weigh the medication to be...
Problem 52E: A children's pain relief elixir contains 80. mg acetaminophen per 0.50 teaspoon. The dosage...
Problem 53E: Science fiction often uses nautical analogies to describe space travel. If the starship U.S.S....
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Problem 56E: You pass a road sign saying New York 112 km. If you drive at a constant speed of 65 mi/h, how long...
Problem 57E: The dosage for an antibiotic is prescribed at 8.0 mg per kilo-gram of body weight, taken twice daily...
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Problem 59E
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Problem 61E: Convert the following Fahrenheit temperatures to the Celsius and Kelvin scales. a. 459F, an...
Problem 62E: A thermometer gives a reading of 96.1F 0.2F. What is the temperature in C? What is the uncertainty?
Problem 63E: Convert the following Celsius temperatures to Kelvin and to Fahrenheit degrees. a. the temperature...
Problem 64E: Convert the following Kelvin temperatures to Celsius and Fahrenheit degrees. a. the temperature that...
Problem 65E: At what temperature is the temperature in degrees Fahrenheit equal to twice the temperature in...
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Problem 69E: A material will float on the surface of a liquid if the material has a density less than that of the...
Problem 70E: One metal object is a cube with edges of 3.00 cm and a mass of 140.4 g. A second metal object is a...
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Problem 76E: The density of pure silver is 10.5 g/cm3 at 20C. If 5.25 g of pure silver pellets is added to a...
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Problem 84E: Define the following terms: solid, liquid, gas, pure substance, element, compound, homogeneous...
Problem 85E: What is the difference between homogeneous and heterogeneous matter? Classify each of the following...
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Problem 87E: Classify each of the following as a mixture or a pure substance. a. water b. blood c. the oceans d....
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Problem 92E: The properties of a mixture are typically averages of the properties of its components. The...
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Problem 94AE: A 194-g sample of caffeine (C8H10N4O2) contains 6.02 1023 molecules of caffeine. If a typical...
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Problem 97AE
Problem 98AE: In the opening scenes of the movie Raiders of the Lost Ark, Indiana Jones tries to remove a gold...
Problem 99AE
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Problem 102AE: Which of the following are chemical changes? Which are physical changes? a. the cutting of food b....
Problem 103AE: A person with high cholesterol has 250 mg of cholesterol per 100.0 mL of blood. If the total blood...
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Problem 105AE: A column of liquid is found to expand linearly on heating. Assume the column rises 5.25 cm for a...
Problem 106AE: A 25.00-g sample of a solid is placed in a graduated cylinder, and then the cylinder is filled to...
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Problem 113CWP: The hottest temperature recorded in the United States is 134F in Greenland Ranch, CA. The melting...
Problem 114CWP
Problem 115CWP: Which of the following statements is(are) true? a. A spoonful of sugar is a mixture. b. Only...
Problem 116CWP: Which of the following describes a chemical property? a. The density of iron is 7.87 g/cm3. b. A...
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Question
Please answer question 11 part A and B
Transcribed Image Text:
Review I Constants I Periodic Table Learning Goal: To understand the arrangement of the periodic table and identify certain groups of elements by name (e.g. halogens, metals, lanthanides etc.). Groups and periods The periodic table is a list of elements arranged by atomic number. As you can see in the image (Figure 1) below, the atomic number for each Columns in the periodic table are called groups, and the rows are called periods. Notice that the groups are labeled 1 to 18 and the periods are labeled 1 to 7. Groups 1, 2, and 13 to 18 are called the main group elements, groups 3 to 12 are the transition elements, and the bottom two rows are called the lanthanides and actinides, respectively. element is the whole number in the cell. The atomic This table gives properties and alternate names for some of the groups: mass, written below the symbol here although it may appear elsewhere in some periodic tables, is the average mass of the isotopes of that element. Group Name Properties 1 Alkali metals React to form 1+ ions. 2 Alkaline earths React to form 2+ ions. 17 Halogens React to form 1– ions. Rare gases (noble gases) Stable and unreactive. (Elements from other groups form ions to achieve the same number of electrons as a noble gas.) 18 Metals vs. nonmetals Notice the heavy zigzag line running diagonally across the right part of the table. This line separates metals (below and to the left of the line) from the nonmetals (above and to the right of the line). Metals tend to lose electrons to form positive ions, whereas nonmetals tend to gain electrons to form negative ions. Figure 1 of 1 atomic number H. 1.008 - atomic mass
Transcribed Image Text:
Part A What is the atomic number of the element located in group 16, period 2 of the periodic table? Enter the atomic number. • View Available Hint(s) Part B If a new element were discovered and it was found to form 1– ions, in which group would you place it in the periodic table? Enter the group number. View Available Hint(s)
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