Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN: 9781305079250
Author: Mark S. Cracolice, Ed Peters
Publisher: Cengage Learning
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Textbook Question
Chapter 2, Problem 49E
What is the main difference between electrostatic forces and gravitational forces? Which is more similar to the magnetic force? Can two or all three of these forces be exerted between two objects at the same time?
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Chapter 2 Solutions
Introductory Chemistry: An Active Learning Approach
Ch. 2 - Consider the photograph and illustrations of table...Ch. 2 - In the left box, draw a particulate-level...Ch. 2 - Classify the following changes as chemical C or...Ch. 2 - Specific gravity is a physical property. Beakers...Ch. 2 - Classify the following as homogenous or...Ch. 2 - Table salt from the beaker on the left in the...Ch. 2 - Which of the following are compounds, and which...Ch. 2 - Prob. 2.8TCCh. 2 - Identify the net electrical force-attraction,...Ch. 2 - aIs the process of boiling water exothermic or...
Ch. 2 - In everyday language, the term conserve usually...Ch. 2 - Write a brief description of the relationships...Ch. 2 - Write a brief description of the relationships...Ch. 2 - Prob. 3CLECh. 2 - Write a brief description of the relationships...Ch. 2 - Prob. 5CLECh. 2 - Prob. 6CLECh. 2 - Prob. 1ECh. 2 - Classify each of the following as macroscopic,...Ch. 2 - Suggest a reason for studying matter at the...Ch. 2 - How does a chemist think about particles that are...Ch. 2 - Using spheres to represent individual atoms,...Ch. 2 - Describe a piece of ice at the particulate level....Ch. 2 - 7.The word pour is commonly used in reference to...Ch. 2 - Prob. 8ECh. 2 - Which of the three states of matter is most easily...Ch. 2 - Compare the volumes occupied by the same sample of...Ch. 2 - Classify each of the following properties as...Ch. 2 - Classify the italicized property as chemical or...Ch. 2 - Which among the following are physical changes? a...Ch. 2 - Classify each of the following changes as chemical...Ch. 2 - Is the change illustrated below a physical change...Ch. 2 - Is the change in the illustration below a physical...Ch. 2 - Diamonds and graphite are two forms of carbon....Ch. 2 - Aspirin is a pure substance. If you had the choice...Ch. 2 - The substance in the glass below is from a kitchen...Ch. 2 - Are the contents of the bottle in the picture...Ch. 2 - Which of the following particulate illustrations...Ch. 2 - Which of the following particulate illustrations...Ch. 2 - Which of the following are pure substances and...Ch. 2 - Which of the substances below are pure and which...Ch. 2 - Apart from food, list five things in your home...Ch. 2 - Can the terms homogeneous and heterogeneous be...Ch. 2 - Which items in the following list are...Ch. 2 - Classify each of the following mixtures as either...Ch. 2 - Some ice cubes are homogeneous and some are...Ch. 2 - The freshly polished brass cylinder in the picture...Ch. 2 - Draw a particulate-level sketch of a heterogeneous...Ch. 2 - Draw a particulate-level sketch of a homogeneous...Ch. 2 - Suppose someone emptied ball bearings into a...Ch. 2 - Suggest at least two ways to separate ball...Ch. 2 - Prob. 35ECh. 2 - You receive a mixture of table salt and sand and...Ch. 2 - Classify the following as compounds or elements: a...Ch. 2 - Classify each of the following pure substances as...Ch. 2 - Which of the following are elements, and which are...Ch. 2 - Classify each of the following pure substances as...Ch. 2 - Classify each substance in the illustrations below...Ch. 2 - Does each of the particulate-level models below...Ch. 2 - a Which of the following substances would you...Ch. 2 - a Which of the following substances would you...Ch. 2 - Metal A dissolves in nitric acid solution. You can...Ch. 2 - A white, crystalline material that looks like...Ch. 2 - Questions 47 and 48: Samples of matter may be...Ch. 2 - Questions 47 and 48: Samples of matter may be...Ch. 2 - What is the main difference between electrostatic...Ch. 2 - Identify the net electrostatic force attraction,...Ch. 2 - Identify the reactants and products in the...Ch. 2 - In the following equation for a chemical reaction,...Ch. 2 - In the equation Ni+Cu(NO3)2Ni(NO3)2+Cu, which of...Ch. 2 - Write the formulas of the elements that are...Ch. 2 - Prob. 55ECh. 2 - Classify each of the following changes as...Ch. 2 - As a child plays on a swing, at what point in her...Ch. 2 - A bicycle accelerates from 5 miles per hour to 15...Ch. 2 - After solid limestone is heated, the rock that...Ch. 2 - Before electronic flashes were commonly used in...Ch. 2 - The photograph below shows a beaker of water and a...Ch. 2 - Prob. 62ECh. 2 - Prob. 63ECh. 2 - Prob. 64ECh. 2 - Distinguish precisely and in scientific terms the...Ch. 2 - Prob. 66ECh. 2 - A natural-food store advertises that no chemicals...Ch. 2 - Prob. 68ECh. 2 - Name some pure substances you have used today.Ch. 2 - How many homogeneous substances can you reach...Ch. 2 - Which of the following can be pure substances:...Ch. 2 - Can you have a mixture of two elements as well as...Ch. 2 - Can you have more than one compound made of the...Ch. 2 - Rainwater comes from the oceans. Is rainwater more...Ch. 2 - Prob. 75ECh. 2 - Prob. 76ECh. 2 - Consider the sample of matter in the illustration...Ch. 2 - A particulate-level illustration of the reaction...Ch. 2 - Prob. 79ECh. 2 - Prob. 80ECh. 2 - Prob. 81ECh. 2 - Prob. 82ECh. 2 - Particles in the illustration below undergo a...Ch. 2 - Prob. 84E
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- What properties distinguish solids from liquids? Liquids from gases? Solids from gases?arrow_forwardA hot metal block is plunged into water in a well-insulated container. The temperature of the metal block goes down, and the temperature of the water goes up until their temperatures are the same. A total of 1500 J of energy' is lost by the metal object. By how much did the energy of the water increase? What law of science is illustrated by this problem?arrow_forwardaIs the process of boiling water exothermic or endothermic with respect to the water? bA charged object is moved closer to another object that has the same charge. The energy of the system changes. Is it a change in kinetic energy or potential energy? Is the energy changes an increase or a decrease?arrow_forward
- ¡n a sample of a gaseous substance, more than 99% of the overall volume of the sample is empty space. How is this fact reflected in the properties of a gaseous substance compared with the properties of a liquid or solid substance?arrow_forwardDescribe how a homogeneous mixture differs from a heterogeneous mixture.arrow_forwardSuppose that you are closing a cabin in the north woods for the winter and you do not want the water in the toilet tank to freeze. You know that the temperature might get as low as 30. C, and you want to protect about 4.0 L water in the toilet tank from freezing. Calculate the volume of ethylene glycol (density = 1.113 g/mL; molar mass = 62.1 g/mol) you should add to the 4.0 L water.arrow_forward
- A 2.0-mer volume of hydrogen gas combined with 1.0 liter of oxygen gas to produce 2.0 liters of water vapor. Does oxygen undergo a chemical or physical change?arrow_forwardSuppose someone emptied ball bearings into a container of salt. Could you separate the ball bearings from the salt? How? Would your method involve no change, be a physical change, or be a chemical change?arrow_forwardAll molecules attract each other to some extent, and the attraction decreases as the distance between particles increases. Based on this idea, which state of matter would you expect has the strongest inter-actions between particles: solids, liquids, or gases?arrow_forward
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