INTRODUCTORY CHEMISTRY-W/MOD.MASTERING.
6th Edition
ISBN: 9780134809922
Author: Tro
Publisher: PEARSON
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Chapter 7, Problem 2E
If you could observe atoms and molecules with the naked eye, what would you look for as conclusive evidence of a
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Chapter 7 Solutions
INTRODUCTORY CHEMISTRY-W/MOD.MASTERING.
Ch. 7 - Which process is a chemical reaction? a. Gasoline...Ch. 7 - How many oxygen atoms are on the reactant side of...Ch. 7 - Q3. What is the coefficient for hydrogen in the...Ch. 7 - Q4. Determine the correct set of coefficients to...Ch. 7 - Which compound is soluble in water? a. Fe(OH)2 b....Ch. 7 - Name the precipitate that forms (if any) when...Ch. 7 - Q7. Which set of reactants forms a solid...Ch. 7 - Q8. What is the net ionic equation for the...Ch. 7 - Q9. Complete the equation:
a.
b.
c.
d. No...Ch. 7 - Prob. 10SAQ
Ch. 7 - What are the products of the balanced equation for...Ch. 7 - Q12. Precipitation reactions are best classified...Ch. 7 - 1. What is a chemical reaction? List some...Ch. 7 - If you could observe atoms and molecules with the...Ch. 7 - 3. What are the main indications that a chemical...Ch. 7 - What is a chemical equation? Provide an example...Ch. 7 - Prob. 5ECh. 7 - To balance a chemical equation, adjust the...Ch. 7 - 7. Is the chemical equation balanced? Why or why...Ch. 7 - 8. What is an aqueous solution? List two...Ch. 7 - 9. What does it mean if a compound is referred to...Ch. 7 - Explain what happens to an ionic substance when it...Ch. 7 - Do polyatomic ions dissociate when they dissolve...Ch. 7 - What is a strong electrolyte solution?Ch. 7 - 13. What are the solubility rules, and how are...Ch. 7 - What is a precipitation reaction? Provide an...Ch. 7 - 15. Is the precipitate in a precipitation reaction...Ch. 7 - 16. Describe the difference between a molecular...Ch. 7 - What is an acid-base reaction? List an example and...Ch. 7 - Prob. 18ECh. 7 - What is a gas evolution reaction? Give an example.Ch. 7 - What is a redox reaction? Give an example.Ch. 7 - Prob. 21ECh. 7 - Prob. 22ECh. 7 - 23. Explain the difference between a synthesis...Ch. 7 - 24. Explain the difference between a...Ch. 7 - Which observation is consistent with a chemical...Ch. 7 - Which observation is consistent with a chemical...Ch. 7 - Vinegar forms bubbles when it is poured into the...Ch. 7 - When a chemical drain opener is added to a clogged...Ch. 7 - 29. When a commercial hair bleaching mixture is...Ch. 7 - When water is boiled in a pot, it bubbles. Has a...Ch. 7 - For each chemical equation (which may or may not...Ch. 7 - For each chemical equation (which may or may not...Ch. 7 - 33. Consider the unbalanced chemical equation.
A...Ch. 7 - Consider the unbalanced chemical equation....Ch. 7 - Prob. 35ECh. 7 - Write a balanced chemical equation for each...Ch. 7 - Write a balanced chemical equation for each...Ch. 7 - Write a balanced chemical equation for each...Ch. 7 - 39. When solid sodium is added to liquid water, it...Ch. 7 - When iron rusts, solid iron reacts with gaseous...Ch. 7 - 41. Sulfuric acid in acid rain forms when gaseous...Ch. 7 - Nitric acid in acid rain forms when gaseous...Ch. 7 - Prob. 43ECh. 7 - Prob. 44ECh. 7 - 45. Write a balance chemical equation for the...Ch. 7 - Write a balanced chemical equation for the...Ch. 7 - 47. Balance each chemical equation.
a.
b.
c.
d....Ch. 7 - Balance each chemical equation. a....Ch. 7 - 49. Balance each chemical equation.
a.
b.
c.
d....Ch. 7 - Balance each chemical equation. a....Ch. 7 - 51. Is each chemical equation correctly balanced?...Ch. 7 - Prob. 52ECh. 7 - Prob. 53ECh. 7 - Propane camping stoves produce heat by the...Ch. 7 - 55. Catalytic converters work to remove nitrogen...Ch. 7 - Prob. 56ECh. 7 - 57. Is each compound soluble or insoluble? For the...Ch. 7 - 58. Is each compound soluble or insoluble? For the...Ch. 7 - 59. Pair each cation on the left with an anion on...Ch. 7 - Pair each cation on the left with an anion on the...Ch. 7 - 61. Move any misplaced compounds to the correct...Ch. 7 - Prob. 62ECh. 7 - Complete and balance each equation. If no reaction...Ch. 7 - Complete and balance each equation. If no reaction...Ch. 7 - Write a molecular equation for the precipitation...Ch. 7 - Write a molecular equation for the precipitation...Ch. 7 - Correct any incorrect equations. If no reaction...Ch. 7 - 68. Correct any incorrect equations. If no...Ch. 7 - 69. Identify the spectator ions in the complete...Ch. 7 - Identify the spectator ions in the complete ionic...Ch. 7 - 71. Write balanced complete ionic and net ionic...Ch. 7 - Write balanced complete ionic and net ionic...Ch. 7 - Mercury(I) ions (Hg22+) can be removed from...Ch. 7 - 74. Lead ions can be removed from solution by...Ch. 7 - Write complete ionic and net ionic equations for...Ch. 7 - 76. Write complete ionic and net ionic equations...Ch. 7 - When a hydrochloric acid solution is combined with...Ch. 7 - 78. A breaker of nitric acid is neutralized with...Ch. 7 - 79. Complete and balance each acid-base...Ch. 7 - Complete and balance each acid-base reaction. a....Ch. 7 - 81. Complete and balance each gas evolution...Ch. 7 - Complete and balance each gas evolution reaction....Ch. 7 - Which reactions are redox reactions? a....Ch. 7 - Which reactions are redox reactions? a....Ch. 7 - Prob. 85ECh. 7 - 86. Complete and balance each combustion...Ch. 7 - 87. Write a balanced chemical equation for the...Ch. 7 - Write a balanced chemical equation for the...Ch. 7 - 89. Classify each chemical reaction as a...Ch. 7 - 90. Classify each chemical reaction as a...Ch. 7 - Prob. 91ECh. 7 - 92. A main source of soulful oxide pollutants are...Ch. 7 - Predict the products of each reaction and write...Ch. 7 - Predict the products of each reaction and write...Ch. 7 - Prob. 95ECh. 7 - 96. Predict the products of each reaction and...Ch. 7 - Predict the type of reaction (if any) that occurs...Ch. 7 - Prob. 98ECh. 7 - Classify each reaction in as many ways as...Ch. 7 - Classify each reaction in as many ways as...Ch. 7 - Hard water often contains dissolved Ca2+ and Mg2+...Ch. 7 - Lakes that have been acidified by acid rain...Ch. 7 - 103. What solution can you add to each cation...Ch. 7 - Prob. 104ECh. 7 - A solution contains an unknown amount of dissolved...Ch. 7 - Prob. 106ECh. 7 - Prob. 107ECh. 7 - Prob. 108ECh. 7 - 109. Shown here are molecular views of two...Ch. 7 - Precipitation reactions often produce brilliant...Ch. 7 - Prob. 111QGWCh. 7 - Memorize the solubility rules. Without referring...Ch. 7 - Define and give an example of each of the...Ch. 7 - Water samples often contain dissolved ions such as...
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- hat do the coefficients of a balanced chemical equation tell us about the proportions in which atoms and molecules react on an individual (microscopic) basis?arrow_forwardlist at least three quantities that must be conserved in chemical reactions.arrow_forwardMany over-the-counter antacid tablets are now formulated using calcium carbonate as the active ingredient, which enables such tablets to also be used as dietary calcium supplements. As an antacid for gastric hyperacidity, calcium carbonate reacts by combining with hydrochloric acid found in the stomach, producing a solution of calcium chloride, converting the stomach acid to water, and releasing carbon dioxide gas (which the person suffering from stomach problems may feel as a “burp”). Write the unbalanced chemical equation for this process.arrow_forward
- Many cereals are made with high moisture content so that the cereal can be formed into various shapes before it is dried. A cereal product containing 58% H2O by mass is produced at the rate of 1000. kg/h. What mass of water must be evaporated per hour if the final product contains only 20.% water?arrow_forwardhat kind of visual evidence indicates that a chemical reaction has occurred? Give an example of each type of evidence you have mentioned. Do all reactions produce visual evidence that they have taken place?arrow_forwardMany cereals are made with high moisture content so that the cereal can be formed into various shapes before it is dried. A cereal product containing 58% H2O by mass is produced at the rate of 1000. kg/h. What mass of water must be evaporated per hour if the final product contains only 20.% water?arrow_forward
- 4.106 An ore sample with a mass of 670 kg contains 27.7% magnesium carbonate, MgCO3. If all of the magnesium carbonate in this ore sample is decomposed to form carbon dioxide, describe how to determine what mass of CO2 is evolved during the process.arrow_forward4.69 The pictures below show a molecular-scale view of a chemical reaction between H2 and CO to produce methanol, CH3OH. The box on the left represents the reactants at the instant of mixing, and the box on the right shows what is left once the reaction has gone to completion. Was there a limiting reactant in this reaction? If so, what was it? Write a balanced chemical equation for this reaction. As usual, your equation should use the smallest possible whole number coefficients for all substances.arrow_forwardIron oxide ores, commonly a mixture of FeO and Fe2O3, are given the general formula Fe3O4. They yield elemental iron when heated to a very high temperature with either carbon monoxide or elemental hydrogen. Balance the following equations for these processes: Fe3O4(s)+H2(g)Fe(s)+H2O(g)Fe3O4(s)+CO(g)Fe(s)+CO2(g)arrow_forward
- Classify each of the following statements as true or false: a In a chemical reaction, reacting substances are destroyed and new substances are formed. b A chemical equation expresses the quantity relationships between reactants and products in terms of moles. c Elements combine to form compounds in combination reactions. d Compounds decompose into elements in decomposition reactions. e A nonmetal cannot replace a nonmetal in a single replacement reaction.arrow_forwardDisulfur dichloride, S2Cl2, is used to vulcanize rubber. It can be made by treating molten sulfur with gaseous chlorine. S8() + 4 Cl2(g) 4 S2Cl2(g) Complete this table of reaction quantities for the production of 103.5 g S2Cl2.arrow_forwardIt is stated in Section 6.3 of the text that to balance equations by inspection you start “with the most complicated molecule.” What does this mean? Why is it best to do this?arrow_forward
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