Problem 1QC: What characteristics distinguish different types of matter? Problem 2QC: What are some properties of matter? Problem 3QC: What is energy and how does it differ from matter? Problem 4QC: What approaches do scientists use to answer these and other questions? Problem 1PP: Identify the non-metals in ï¬�gure 1.4. Explain the characteristics you considered in making your... Problem 2PP: (a) Lead is a soft dull, silver-colored metal. Write the symbol for the element lead. (b) The symbol... Problem 3PP: Which of the pictures represent mixtures? Which are heterogeneous? Which are homogeneous? Problem 4PP: (a) Which of the images represents an element that exists as a molecule? (b) If image E represents a... Problem 5PP: Anna and Bill see an aluminum recycling truck pass by on their way to class. If there are 765 lb of... Problem 6PP: Anna and Bill saw balloons outside the bookstore. The volume of gas inside one of the helium... Problem 7PP: Solve the following problems. (a) The density of pure gold is 19.3g/cm3 . What is the volume of 1.00... Problem 8PP: Helium balloons rise in air. which is a mixture of oxygen and nitrogen molecules, so we knew helium... Problem 9PP: (a) The boiling point of acetylene is 28.1C. Below what temperature. in kelvins and degrees... Problem 10PP: Which of the following are physical properties and which are chemical properties? (a) boiling point... Problem 11PP: Do the following molecular level images represent a chemical change or a physical change? Problem 12PP: Which of the two samples of argon gas is at a lower temperature? Problem 13PP Problem 14PP: (a) Convert 0.0123 to scientiï¬�c notation. (b) Convert 123 to scientiï¬�c notation. (c) Write the... Problem 15PP: Perform the following operations without using your calculator and report your answers in scientific... Problem 16PP: Determine the number of signiï¬�cant ï¬�gures in the following: (a) 14800.0 (b) 0.00076 Problem 17PP Problem 18PP: Express the answers to the following operations with the proper number of significant figures:... Problem 19PP Problem 20PP: Round each of the following numbers to two signiï¬�cant ï¬�gures: (a)1.502 (b) 13.50 (c) 0.001056... Problem 21PP: Convert 0.0276 kg to grams. Problem 22PP: A tablet of a typical pain reliever contains 200 mg of active ingredient. How many pounds of active... Problem 23PP: The TGV POS high-speed train in France has a clocked speed of 574.8 km/h. Convert this speed to the... Problem 1QP: Match the key terms with the following descriptions. (a) a measure of the quantity of matter (b) a... Problem 2QP: Match the key terms with the following descriptions. (a) ï¬�le smallest particle of an element that... Problem 3QP: Convert each of the following values to scientiï¬�c notation. (a) 29,500 (b) 0.000082 (c)... Problem 4QP: Convert each of the following values to scientiï¬�c notation. (a) 0.00010 (b) 4500 (c)90,100,000 (d)... Problem 5QP: Convert each of the following values from scientiï¬�c notation to decimal form.... Problem 6QP: Convert each of the following Values from scientiï¬�c notation to decimal form.... Problem 7QP Problem 8QP: For each of the following, carry out the mathematical operation and report answers in scientiï¬�c... Problem 9QP: Determine the number of signiï¬�cant ï¬�gures in the following. (a) 0.0950 (b) 760 (c) 1.005 (d)... Problem 10QP: Determine the number of signiï¬�cant ï¬�gures in the following.... Problem 11QP: Express the answers to the following operations with the proper number of signiï¬�cant ï¬�gures.... Problem 12QP: Express the answers to the following operations with the proper number of signiï¬�cant ï¬�gures.... Problem 13QP: Express the answers to the following operations with the proper number of signiï¬�cant ï¬�gures.... Problem 14QP: Express the answers to the following operations with the proper number of signiï¬�cant ï¬�gures.... Problem 15QP: Express the answers to the following calculations with the proper number of signiï¬�cant ï¬�gures... Problem 16QP: Express the answers to the following calculations with the proper number of signiï¬�cant ï¬�gures... Problem 17QP: Round each of the following numbers to three signiï¬�cant ï¬�gures.... Problem 18QP: Round each of the following numbers to three signiï¬�cant ï¬�gures.... Problem 19QP: Carry out the following conversions. Report your answers to the correct number of signiï¬�cant... Problem 20QP: Carry out the following conversions. Report your answers to the correct number of signiï¬�cant... Problem 21QP: Carry out the following conversions. Report your answers to the correct number of signiï¬�cant... Problem 22QP Problem 23QP: Carry out the following conversions. Report your answers to the correct number of signiï¬�cant... Problem 24QP Problem 25QP: How would you classify the following items observed by Bill and Anna? (a) water in a fountain... Problem 26QP: How would you classify the following items observed by Bill and Anna? (a) sand in a volleyball court... Problem 27QP: Which of the following are examples of matter? (a) sunlight (b) gasoline (c) automobile exhaust (d)... Problem 28QP: Which of the following are not examples of matter? (a) Light from a fluorescent bulb (b) sand (c)... Problem 29QP: How are elements distinguished from compounds? Problem 30QP: How are homogeneous mixtures distinguished from heterogeneous mixtures? Problem 31QP: List characteristics of metals. Problem 32QP: List characteristics of nomnetals. Problem 33QP: Name the following elements. (a) Ti (b) Ta (c)Th (d) Tc (e) Tl Problem 34QP: Name the following elements. (a) C (b) Ca (c) Cr (d) Co (e) Cu (f) Cl (g) Cs Problem 35QP: Name the following elements. (a) B (b) Ba (c) Be (d) Br (e) Bi Problem 36QP: Name the following elements. (a) S (b) Si (c) Se (d) Sr (e) Sn Problem 37QP: Name the following elements. (a) N (b) Fe (c) Mn (d) Mg (e) Al (f) Cl Problem 38QP: Name the following elements. (a) Be (b) Rb (c) Ni (d) Sc (e) Ti (f) Ne Problem 39QP: what are the symbols for the following elements? (a) iron (b) lead (c) silver (d) gold (e) antimony Problem 40QP: What are the symbols for the following elements? (a) copper (b) mercury (c) tin (d) sodium (e)... Problem 41QP: A chemical novice used the symbol It to represent iron. Is this an acceptable symbol for the... Problem 42QP: A chemical novice used the symbol SI to represent silicon. Is this an acceptable symbol for the... Problem 43QP: The symbol NO was used by a student to represent nobelium an unstable, synthetic element. Is this an... Problem 44QP: A student used the symbol CO to represent cobalt, an element found in vitamin B12 . Is this an... Problem 45QP: Classify each of the following as a pure substance, a homogeneous mixture (solution), or a... Problem 46QP: Classify each of the following as a pure substance, a homogeneous mixture (solution), or a... Problem 47QP: Elemental hydrogen normally exists as two hydrogen atoms bound together. Write ï¬�le formula for... Problem 48QP: Elemental chlorine normally exists as two chlorine atoms bound together. Write the formula for this... Problem 49QP: This image is a representation for a compound containing nitrogen and oxygen. Write the formula for... Problem 50QP: This image represents a compound containing phosphorus and chlorine. Write the formula for this... Problem 51QP: Which of the images represents a mixture of an element and a compound? Problem 52QP: Which of the images in question 1.51 represents a pure substance that is a compound? Problem 53QP: Classify each of the following as an element or a compound. aO2(b)Fe2O3cP4(d)He(e)NaClfH2O Problem 54QP Problem 55QP: Under normal conditions, mercury is a liquid. Draw molecular-level pictures of what mercury atoms... Problem 56QP: Under normal conditions. bromine is a liquid. Draw molecular-level pictures of what bromine, Br2 ,... Problem 57QP: What type of matter expands to ï¬�ll its container and can be compressed to a smaller volume? Problem 58QP: What type of matter is composed of panicles that do not move past one another? Problem 59QP Problem 60QP: Identify ï¬�le physical state of each of the following compounds from men symbols. (a) NaCl(s) (b)... Problem 61QP: What physical state is represented in this diagram? Problem 62QP: Draw a picture of the gaseous state of the substance shown in Question 1.61. Problem 63QP: How might you symbolically represent a homogeneous mixture of oxygen, O2, and water? Problem 64QP: Why does the symbol H2O(aq) make no sense? Problem 65QP: At the beginning of the chapter, Anna and Bill made many observations about what they saw some of... Problem 66QP: At the beginning of the chapter, you were asked to classify processes Like a truck running on gas or... Problem 67QP Problem 68QP: A package of Swiss cheese has a mass of 0.340 kg. (a) What is this mass in grams? (b) What is this... Problem 69QP: A grain of salt has a mass of about 1.0104g . What is its mass in the following units? (a)... Problem 70QP: If a dog has a mass of 15.2 kg, what is its mass in the following units? (a) grams (b) milligrams... Problem 71QP: If you drank 1.2 L of a sports drink, what volume did you consume in the following units? (a)... Problem 72QP: If the volume of helium in a balloon is 145cm3 , what is its volume in the following units? (a)... Problem 73QP: If the length, width, and height of a box are 8.0 cm, 5.0 cm, and 4.0 cm, respectively. what is the... Problem 74QP: If a cubic box (all sides the same length) has a volume of 1.0 L, what is the length of each side of... Problem 75QP: A slice of cheese has a mass of 28g and a Volume of 21cm3 . What is the density of the cheese in... Problem 76QP Problem 77QP: If the density of a sugar solution is 1.30g/mL, what volume of this solution has a mass of 50.0 g? Problem 78QP: The density of a certain type of plastic is 0.75g/cm3 . If a sheet of this plastic is 10.0 m long,... Problem 79QP: Why do liquids have greater densities than gases? Problem 80QP: When a balloon filled with air is heated the balloon increases in volume. Does the density of the... Problem 81QP: A piece of plastic sinks in oil but floats in water. Place these three substances in order from... Problem 82QP: what special molecular-level feature of ice explains why ice floats in water? Problem 83QP: Acetone, a component of some types of fingernail polish remover, has a boiling point 56C. What is... Problem 84QP: The boiling point of liquid nitrogen is 77 K. What is its boiling point in units of degrees Celsius? Problem 85QP: What is the difference in temperature between the boiling point of water and the freezing point of... Problem 86QP: If the temperature of a cup of coffee decreases from 60.0Cto25.0C , what is the decrease in... Problem 87QP: Does the boiling point of a substance depend on how much of this substance you have? Problem 88QP: Does the melting point of a substance depend on how much of this substance you have? Problem 89QP: Identify each of the following as a physical property or a chemical property. (a) mass (b) density... Problem 90QP: Identify each of the following as a physical property or a chemical property. (a) boiling point (b)... Problem 91QP: Identify each of the following as a physical change or a chemical change. (a) boiling acetone (b)... Problem 92QP: Identify each of the following as a physical change or a chemical change. (a) condensation of... Problem 93QP: Write a symbolic representation and a molecular level representation for the change that occurs... Problem 94QP: Write a symbolic representation and a molecular-level representation for the process of freezing... Problem 95QP: Do the changes shown in this diagram represent a physical or chemical change? Problem 96QP: Do the Changes shown in this diagram represent a physical or chemical change? Problem 97QP: Draw a picture that shows CH4 (shown in the "After" image in Question 1.95) condensing from a gas to... Problem 98QP: Draw a picture that shows water boiling. Does this picture represent a physical or chemical change? Problem 99QP: The image shows what happens when iodine I2 is placed in the bottom of a beaker and heated. Is this... Problem 100QP: The picture shows natural gas CH4 burning in the process. Carbon dioxide and water forms Is this a... Problem 101QP: Anna and Bill saw a construction Worker welding pipe. Classify the forms of energy they were... Problem 102QP: Bill and Anna watched students playing volleyball in the sunshine. Classify the forms of energy they... Problem 103QP: Which of these two samples of carbon dioxide gas has more kinetic energy? Explain your answer. Problem 104QP: Which of these two samples of methane gas is at a higher temperature? Explain your answer. Problem 105QP Problem 106QP Problem 107QP: Distinguish between the different types of energy shown in the following picture. Problem 108QP Problem 109QP Problem 110QP Problem 111QP: In terms of kinetic and potential energy. Describe what happens when a home run is hit on a softball... Problem 112QP: In terms of kinetic and potential energy. Describe what happens when a basketball is dribbled down a... Problem 113QP: Body mass index (BMI) is a number calculated from a person's weight and height. BMI provides a... Problem 114QP Problem 115QP Problem 116QP: Explain the difference between a hypothesis and a theory. Problem 117QP: Explain how a hypothesis is used in scientific research. Problem 118QP: Classify each of the following as an observation, hypothesis, law, or theory. (a) When wood burns... Problem 119QP: Classify each of the following as an observation, an hypothesis, law, or theory. (a) Bad luck... Problem 120QP: You observe coins in a fountain and propose the hypothesis that fountains are built with coins in... Problem 121QP: You observe a piece of balsa wood floating on water and propose the hypothesis that all wood floats... Problem 122QP: Rank the following measurements in order from smallest to... Problem 123QP: The density of air in a balloon is less at high altitudes than at low altitudes. Explain this... Problem 124QP: If the temperature in a room increases from 20.0Cto30.0C, what is file temperature change in units... Problem 125QP: If you have a sample of zine and a sample of copper, and both have the same mass, which has the... Problem 126QP: Give the symbols for potassium and phosphorus. Problem 127QP Problem 128QP: The red blood cell (RBC) Count for a normal female is about 5 million RBCs per L(L=1mm3). How many... Problem 129QP: Recycling facilities around the world use a variety of techniques to separate difference types of... Problem 130QP: These sample of metals have the same mass. Which has the greater density? Problem 131QP: The typical dose of epinephrine at a particular concentration administered to a patient under... Problem 132QP: About 70 million tons of paper are used per year in the United States. If the U.S. population is... Problem 133QP: During a typical physical exam, blood tests to measure cholesterol levels are usually run. A total... Problem 134QP: The densities of antifreeze, corn oil, dish detergent, maple syrup, shampoo, and water in g/mL are... Problem 135QP: The lower possible temperature is the temperature at which a substance would have no kinetic (no... Problem 136QP: Classify the substance in the molecular-level image as: (a) an element, compound, or mixture (b)Â... Problem 137QP: Classify each of the following as a symbolic representation for a pure element, pure compound, or... Problem 138QP: Titanium is a strong metal with a low density that is shiny with a white-metallic colour. It is... Problem 139QP: Blood is a water-based liquid in which solids (blood cells and solids (blood cells and platelets)... Problem 140QP Problem 141QP: Convert 10.0m3 to units of cm3 using the conversion factor 1m=100cm. Problem 142QP: The average blood volume in the human body in about 4.8 L. Convert this volume to the following... Problem 143QP: The average density of human blood is 1060kg/m3. What is the mass of blood in a person who has a... Problem 144QP: What is the name for the change in physical state described in each of the following processes?... Problem 145QP: A car traveling at 29.1 m/s drives for 2.5 hours then goes another 75 km. How far did the driver... Problem 146QP Problem 147QP: Which of the following is an example of a mixture?... Problem 148QP: Which of the following is a pure substance that is composed of molecules? For the correct answers,... Problem 149QP: Which of the following statements regarding liquids is correct? A. They consist of particles that... Problem 150QP: A rectangular block of an unknown metal with a mass of 456 g is measured to have a length, width,... Problem 151QP: Which of the following statement is correct? A. Natural gas burning to produce water and carbon... Problem 152QP: Which of the following statements is correct? A. Heart coming off a car engine is an example of... Problem 153QP: Which of the following is an example of a hypothesis? A The mass of products obtained in a chemical... Problem 154QP: The number 0.00063780 correctly expressed in scientific notation is:... Problem 155QP: Which of the following mathematical operation would have two significant figures in the answer?... Problem 156QP: Which of the following has the largest mass? A.4.1102kgB.1.8104mgC.25gD.6.5106gE.7.6101g Arrange... Problem 157QP: A bicyclist is traveling at 6.7 meters per second. Which of the mathematical operation would... format_list_bulleted
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