MASTERING CHEMISTY NVCC ACCESS CODE
1st Edition
ISBN: 9780136444459
Author: Tro
Publisher: PEARSON
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MASTERING CHEMISTY NVCC ACCESS CODE
Ch. 7 - Prob. 1ECh. 7 - Prob. 2ECh. 7 - What is the difference between a physical change...Ch. 7 - What is the difference between a physical property...Ch. 7 - What is a balanced chemical equation?Ch. 7 - Why must chemical equations be balanced?Ch. 7 - What is reaction stoichiometry? What is the...Ch. 7 - In a chemical reaction, what is the limiting...Ch. 7 - In a chemical reaction, what is the theoretical...Ch. 7 - We typically calculate the percent yield using the...
Ch. 7 - Prob. 11ECh. 7 - Prob. 12ECh. 7 - Write a general equation for the reaction of an...Ch. 7 - Prob. 14ECh. 7 - Classify each change as physical or chemical....Ch. 7 - Prob. 16ECh. 7 - Prob. 17ECh. 7 - Prob. 18ECh. 7 - Classify each of the listed properties of...Ch. 7 - Prob. 20ECh. 7 - Classify each property as physical or chemical the...Ch. 7 - Prob. 22ECh. 7 - Sulfuric acid (H2SO4) is a component of acid rain...Ch. 7 - Nitric acid (HNO3) is a component of acid rain...Ch. 7 - Prob. 25ECh. 7 - Prob. 26ECh. 7 - Write a balanced chemical equation for the...Ch. 7 - Write a balanced equation for the photosynthesis...Ch. 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 the...Ch. 7 - Write a balanced chemical equation for the...Ch. 7 - Balance each chemical equation. CO2(g) + CaSiO3(s)...Ch. 7 - Balance each chemical equation. Na2S(aq) +...Ch. 7 - Prob. 35ECh. 7 - Consider the unbalanced equation for the...Ch. 7 - Calculate how many moles of NO2 form when each...Ch. 7 - Calculate how many moles of NH3 form when each...Ch. 7 - Consider the balanced equation: SiO2(s) + 3 C(s)...Ch. 7 - Consider the balanced equation: 2 N2H4(s) +...Ch. 7 - Hydrobromic acid (HBr) dissolves solid iron...Ch. 7 - Sulfuric acid (H2SO4) dissolves aluminum metal...Ch. 7 - For each of the reactions, calculate the mass (in...Ch. 7 - For each of the reactions, calculate the mass (in...Ch. 7 - For the following reaction, determine the limiting...Ch. 7 - Find the limiting reactant for each initial amount...Ch. 7 - Consider the reaction: HCl(g) + O2(g) 2 H2O(g) +...Ch. 7 - Consider the reaction: 2 CH 3 OH(g)+3 O 2 (g)2 CO...Ch. 7 - Calculate the theoretical yield of the product (in...Ch. 7 - Calculate the theoretical yield of product (in...Ch. 7 - Zinc sulfide reacts with oxygen according to the...Ch. 7 - Iron(ll) sulfide reacts with hydrochloric acid...Ch. 7 - For the reaction shown, calculate the theoretical...Ch. 7 - For the reaction shown, calculate the theoretical...Ch. 7 - Iron(lll) oxide reacts with carbon monoxide...Ch. 7 - Elemental phosphorus reacts with chlorine gas...Ch. 7 - Lead(ll) ions can be removed from solution with...Ch. 7 - Prob. 58ECh. 7 - Urea (CH4N2O) is a common fertilizer that is...Ch. 7 - Prob. 60ECh. 7 - Prob. 61ECh. 7 - Complete and balance each combustion reaction...Ch. 7 - Prob. 63ECh. 7 - Prob. 64ECh. 7 - Prob. 65ECh. 7 - Prob. 66ECh. 7 - Prob. 67ECh. 7 - Prob. 68ECh. 7 - Prob. 69ECh. 7 - Prob. 70ECh. 7 - Aspirin can be made in the laboratory by reacting...Ch. 7 - The combustion of liquid ethanol (C2H5OH) produces...Ch. 7 - Prob. 73ECh. 7 - Prob. 74ECh. 7 - Prob. 75ECh. 7 - An important reaction that takes place in a blast...Ch. 7 - A liquid fuel mixture contains 30.35% hexane...Ch. 7 - Titanium occurs in the magnetic mineral ilmenite...Ch. 7 - A mixture of C3H8 and C2H2 has a mass of 2.0 g. It...Ch. 7 - Prob. 80ECh. 7 - Lead poisoning is a serious condition resulting...Ch. 7 - Prob. 82ECh. 7 - Metallic aluminum reacts with MnO2 at elevated...Ch. 7 - Prob. 84ECh. 7 - Consider the reaction: 4K(s)+O2(g)2K2O(s) The...Ch. 7 - Prob. 86ECh. 7 - Consider the reaction:...Ch. 7 - Prob. 88ECh. 7 - Prob. 89ECh. 7 - Prob. 90ECh. 7 - What are the correct coefficients (reading from...Ch. 7 - Prob. 2SAQCh. 7 - Prob. 3SAQCh. 7 - For the reaction shown here, 3.5 mol A is mixed...Ch. 7 - Manganese(IV) oxide reacts with aluminum to form...Ch. 7 - Sodium and chlorine react to form sodium chloride....Ch. 7 - Sulfur and fluorine react to form sulfur...Ch. 7 - A reaction has a theoretical yield of 45.8 g. When...Ch. 7 - Prob. 9SAQCh. 7 - Solid potassium chlorate (KCIO3) decomposes into...
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- Consider the chemical reaction 2 S + 3 O2 → 2 SO3. If the reaction is run by adding S indefinitely to a fixed amount of O2, which of these graphs best represents the formation of SO3? Explain your choice.arrow_forward4.64 Using the web, find information about the amount of lead in the environment during the past 50 years. Correlate what you observe with the presence or absence of tetraethyl lead in gasoline.arrow_forwardChalky, white crystals in mineral collections are often labeled borax, which has the molecular formula Na2B4O7 10H2O, when actually they are partially dehydrated samples with the molecular formula Na2B4O7 5H2O, which is more stable under the storage conditions. Real crystals of borax are colorless and transparent. (a) Calculate the percent mass that the mineral has lost when it partially dehydrates. (b) Is the percent boron by mass the same in both compounds?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_forwardCarbon monoxide burns readily in oxygen to form carbon dioxide. 2 CO(g) + O2(g) 2 CO2(g) The box on the left represents a tiny portion of a mixture of CO and O2. If these molecules react to form CO2, What should the contents of the box on the right look like?arrow_forwardSilicon is produced for the chemical and electronics industries by the following reactions. Give the balanced equation for each reaction. a. SiO2(s)+C(s)arefurnaceElectricSi(s)+CO(g) b. Liquid silicon tetrachloride is reacted with very pure solid magnesium, producing solid silicon and solid magnesium chloride. c. Na2SiF6(s) + Na(s) Si(s) + NaF(s)arrow_forward
- The present average concentration (mass percent) of magnesium ions in seawater is 0.13%. A chemistry textbook estimates that if 1.00 × 108 tons Mg were taken out of the sea each year, it would take one million years for the Mg concentration to drop to 0.12%. Do sufficient calculations to either verify or refute this statement. Assume that Earth is a sphere with a diameter of 8000 mi, 67% of which is covered by oceans to a depth of 1 mi, and that no Mg is washed back into the oceans at any time.arrow_forwardEthanol, C2H5OH, is a gasoline additive that can be produced by fermentation of glucose. C6H12O62C2H5OH+2CO2 (a) Calculate the mass (g) of ethanol produced by the fermentation of 1.000 lb glucose. (b) Gasohol is a mixture of 10.00 mL ethanol per 90.00 mL gasoline. Calculate the mass (in g) of glucose required to produce the ethanol in 1.00 gal gasohol. Density of ethanol = 0.785 g/mL. (c) By 2022, the U. S. Energy Independence and Security Act calls for annual production of 3.6 1010 gal of ethanol, no more than 40% of it produced by fermentation of corn. Fermentation of 1 ton (2.2 103 lb) of corn yields approximately 106 gal of ethanol. The average corn yield in the United States is about 2.1 105 lb per 1.0 105 m2. Calculate the acreage (in m2) required to raise corn solely for ethanol production in 2022 in the United States.arrow_forward3.13 An explosive whose chemical formula is C3H6N6O6 produces water, carbon dioxide, and nitrogen gas when detonated in oxygen. Write the chemical equation for the detonation reaction of this explosive.arrow_forward
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