(a) Explanation When a substance loses the electrons then it is known as oxidation and when a substance gains the electrons then it known as reduction. The substance which donates the electrons is said to be oxidized whereas the substance which accepts the electrons is said to be reduced. For example, When Fe 2 + is oxidized to Fe 3 + , an increase in oxidation number of iron takes place that is from + 2 to + 3 (b) Interpretation Introduction To determine: The authenticity of the statement, “Oxidation can occur without reduction”.

Chemistry: The Central Science (14th Edition)

14th Edition

ISBN: 9780134414232

Author: Theodore E. Brown, H. Eugene LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward, Matthew E. Stoltzfus

Publisher: PEARSON

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Redox Reactions

Redox reactions are considered to be the chemical reactions involving both oxidation and reduction processes. They are actually oxidation-reduction reactions. The term redox is made from two words where “red” comes from reduction and “ox” comes from oxid…

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Chapter 4, Problem 46E

(a)

Interpretation Introduction

To determine: The authenticity of the statement, “Oxidation can occur without oxygen”.

(b)

Interpretation Introduction

To determine: The authenticity of the statement, “Oxidation can occur without reduction”.

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Chapter 4, Problem 45E

Chapter 4, Problem 47E

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Chemistry: The Central Science (14th Edition)

Ch. 4.1 - If you have an aqueous solution that contains 1.5...Ch. 4.1 - If you were to draw diagrams representing aqueous...Ch. 4.2 - Prob. 4.2.1PE Ch. 4.2 - Classify the following compounds as soluble or...Ch. 4.2 - Yes or No: Will a precipitate form when solutions...Ch. 4.2 - a. What compound precipitates when aqueous...Ch. 4.2 - What happens when you mix an aqueous solution of...Ch. 4.2 - Write the net ionic equation for the...Ch. 4.3 - Prob. 4.5.1PE Ch. 4.3 - Imagine a diagram showing 10 Na + ions and 10 OH-...

Ch. 4.3 - Which of these substances, when dissolved in...Ch. 4.3 - Consider solutions in which 0.1 mol of each of the...Ch. 4.3 - Which is the correct ionic equation for the...Ch. 4.3 - For the reaction of phosphorous acid (H3PO3) and...Ch. 4.4 - Prob. 4.8.1PE Ch. 4.4 - What is the oxidation state of the boldfaced...Ch. 4.4 - Which of the following statements is true about...Ch. 4.4 - Prob. 4.9.2PE Ch. 4.4 - Which of these metals is the easiest to oxidize?...Ch. 4.4 - Which of the following metals will be oxidized by...Ch. 4.5 - Prob. 4.11.1PE Ch. 4.5 - Calculate the molarity of a solution made by...Ch. 4.5 - Prob. 4.12.1PE Ch. 4.5 - What is the molar concentration of K+ions in a...Ch. 4.5 - Prob. 4.13.1PE Ch. 4.5 - How many grams of Na2SO4 are there in 15 mL of...Ch. 4.5 - Prob. 4.14.1PE Ch. 4.5 - What volume of 2.50 M lead(II) nitrate solution...Ch. 4.6 - How many milligrams of sodium sulfide are needed...Ch. 4.6 - How many grams of NaOH are needed to neutralize...Ch. 4.6 - Prob. 4.16.1PE Ch. 4.6 - Prob. 4.16.2PE Ch. 4.6 - Practice Exercise 1 A mysterious white powder is...Ch. 4.6 - Prob. 4.17.2PE Ch. 4 - Prob. 1DE Ch. 4 - Prob. 1E Ch. 4 - Aqueous solutions of three different substances,...Ch. 4 - 4 3 Use the molecular representations shown here...Ch. 4 - The concept of chemical equilibrium is very...Ch. 4 - 4 5 You are presented with a white solid and told...Ch. 4 - Which of the following ions will always be a...Ch. 4 - The labels have fallen off three bottles...Ch. 4 - Explain how a redox reaction involves electrons in...Ch. 4 - Prob. 9E Ch. 4 - Prob. 10E Ch. 4 - 4.11 Which data set, of the two graphed here,...Ch. 4 - You are titrating an acidic solution with a basic...Ch. 4 - State whether each of the following statements is...Ch. 4 - State whether each of the following statements is...Ch. 4 - 4.15 We have learned in this chapter that many...Ch. 4 - Prob. 16E Ch. 4 - 4.17 Specify what ions are present in solution...Ch. 4 - Prob. 18E Ch. 4 - Prob. 19E Ch. 4 - Acetone. CH3COCH3, is a nonelectrolyte;...Ch. 4 - 4.21 Using solubility guidelines, predict whether...Ch. 4 - Prob. 22E Ch. 4 - Prob. 23E Ch. 4 - Prob. 24E Ch. 4 - Which ions remain in solution, unreacted, after...Ch. 4 - Write balanced net ionic equations for the...Ch. 4 - 4.27 Separate samples of a solution of an unknown...Ch. 4 - Prob. 28E Ch. 4 - Prob. 29E Ch. 4 - Prob. 30E Ch. 4 - Prob. 31E Ch. 4 - Prob. 32E Ch. 4 - State whether each of the following statements is...Ch. 4 - State whether each of the following statements is...Ch. 4 - 4.35 Label each of the following substances as an...Ch. 4 - An aqueous solution of an unknown solute is tested...Ch. 4 - Prob. 37E Ch. 4 - Classify each of the following aqueous solutions...Ch. 4 - Complete and balance the following molecular...Ch. 4 - Write the balanced molecular and net ionic...Ch. 4 - Write balanced molecular and net ionic equations...Ch. 4 - 4.42 Because the oxide ion is basic, metal oxides...Ch. 4 - 4.43 Magnesium carbonate, magnesium oxide, and...Ch. 4 - 4.44 As K20 dissolves in water, the oxide ion...Ch. 4 - True or false: If a substance is oxidized, it is...Ch. 4 - Prob. 46E Ch. 4 - Which region of the periodic table shown here...Ch. 4 - Determine the oxidation number of sulfur in each...Ch. 4 - Determine the oxidation number for the indicated...Ch. 4 - Determine the oxidation number for the indicated...Ch. 4 - Which element is oxidized, and which is reduced in...Ch. 4 - Which of the following are redox reactions? For...Ch. 4 - 4.53 Write balanced molecular and net ionic...Ch. 4 - Write balanced molecular and net ionic equations...Ch. 4 - Using the activity series (Table 4.5), write...Ch. 4 - Using the activity series (Table 4.5), write...Ch. 4 - The metal cadmium tends to form Cd2+ ions. The...Ch. 4 - 4.58 The following reactions (note that the...Ch. 4 - Is the concentration of a solution an intensive or...Ch. 4 - Prob. 60E Ch. 4 - Calculate the molarity of a solution that contains...Ch. 4 - 4.62 Calculate the molarity of a solution made by...Ch. 4 - Prob. 63E Ch. 4 - Prob. 64E Ch. 4 - Prob. 65E Ch. 4 - 4.66 The average adult male has a total blood...Ch. 4 - 4.67 How many grams of ethanol, CH2CH2OH should...Ch. 4 - Prob. 68E Ch. 4 - Which will have the highest concentration of...Ch. 4 - Prob. 70E Ch. 4 - Prob. 71E Ch. 4 - Prob. 72E Ch. 4 - Prob. 73E Ch. 4 - Prob. 74E Ch. 4 - Prob. 75E Ch. 4 - Prob. 76E Ch. 4 - Prob. 77E Ch. 4 - Prob. 78E Ch. 4 - Prob. 79E Ch. 4 - Prob. 80E Ch. 4 - Prob. 81E Ch. 4 - Prob. 82E Ch. 4 - Some sulfuric acid is spilled on a lab bench You...Ch. 4 - 4.84 The distinctive odor of vinegar is due to...Ch. 4 - A 4.36-g sample of an unknown alkali metal...Ch. 4 - 4.86 An 8.65-g sample of an unknown group 2A...Ch. 4 - A solution of 100.0 mL of 0.200 M KOH is mixed...Ch. 4 - 4.88 A solution is made by mixing 15.0 g of...Ch. 4 - Prob. 89E Ch. 4 - A 1.248-9 sample of limestone rock is pulverized...Ch. 4 - 4.91 Uranium hexafluoride, UF6, is processed to...Ch. 4 - The accompanying photo shows the reaction between...Ch. 4 - Prob. 93AE Ch. 4 - 4.94 You choose to investigate some of the...Ch. 4 - 4 95 Antacids are often used to relieve pain and...Ch. 4 - 4 96 The commercial production of nitric acid...Ch. 4 - Consider the following reagents: zinc, copper,...Ch. 4 - 98 Bronze is a solid solution of Cu(s) and Sn(s);...Ch. 4 - Prob. 99AE Ch. 4 - Prob. 100AE Ch. 4 - 4.101 Hard water contains Ca2+ , Mg2 + , and Fe2+...Ch. 4 - Tartaric acid. 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