Interpretation:
Write and balance the equation for the given reaction.
When copper metal reacts with nitric acid to give aqueous copper(II) nitrate, water, nitrogen monoxide as products.
Concept Introduction:
The
Oxidation is the process in which either loss of electrons, oxidation number increases, or loss of hydrogen atoms takes place. An element is oxidized, when oxidation number increases.
Reduction is the process in which either gain of electrons, oxidation number decreases, or gain hydrogen atoms takes place. An element is reduced, when oxidation number decreases.
The balanced chemical equation is the equation in which number of different atoms of elements in the reactants side is similar to the product side.
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Chapter 18 Solutions
Introductory Chemistry: A Foundation
- Iodic acid, HIO3, can be prepared by reading iodine, I2, with concentrated nitric acid. The skeleton equation is I2(s)+NO3(q)IO3(aq)+NO2(g) Balance this equation.arrow_forwardExercise: Assume that 10g of K-PtCl, and 10g of NHare allowed to react, how many grams of the excess reactant are consumed, and how many grams remain? R KPtCla + 2NH3 Pt(NH)Cl+ 2KCIarrow_forwardPRACTICE EXERCISE Classify each of the following chemical reactions as a combination, decomposition, single replacement, double-replacement, or combustion reaction. a. 2KNO, b. Zn + 2A9NO,-→Zn(NO,), + 2Ag c. Ni(NO,), + 2NaOHNi(OH),+ 2NANO, d. 3Mg + N, Mg,N, 2KNO, + O2arrow_forward
- Exercise 3: if you know that bleaching powder is prepared according to the following equation Ca(OH)2(s) + Cl2(g) Ca(OCI)C(s) + H₂O(1) Five commercial samples of bleaching powder (Ca(OCI)CI) were analyzed using titration technique according to the following equations. Ca(OCI)Cl(s) OCI (aq) + 21 (aq) + H₂O) 12(aq) + starch (aq) 1₂. starch (aq) + 2 S₂03² (aq) (Deep blue) Ca²+ + OCT (19) (aq) Mass of bleaching powder (g) 0.700 0.735 0.691 0.653 0.676 Hints: + CT (aq) 12(aq) + Cl(aq) + 2OH(aq) 1₂. starch(aq) Using the following data, calculate the percent of available chlorine (C1₂%, wt./wt., 70.9 g/mol) in each powder sample. Mw.t 21 +S40,² (colorless) Volume (mL) of 0.1 M Mass of S₂O3² (mL) Cl₂ 31.7 33.9 30.6 30.0 28.6 % Cl₂ available mole S₂04² = Volume of S₂0₂2 x Molarity of S₂0₂2- 1 mole I₂ = X mole S₂0₂² 2 mole OCI= mole 1₂ mole Ca(OCI)Cl = mole OCI- mole Cl₂ = mole Ca(OCI)Cl Average Mass of Cl₂ = 1/ x Volume of S₂02x Molarity of S₂042 x Molar mass of Cl₂ mass of Cl₂ (9) Cl₂ %…arrow_forwardBalancing Equations Practice Balance each of the following chemical equations. Directions: You are required to do 8 * worth of problems. You are obviously welcome to do more. Please take a photo of any work on paper and include it in this doc. 8. ** Os0, + PtCl, PtO2 + OsClg 9,举岸 S+ HNO, - H,SO, + NO2 + H20 >arrow_forwardPractice Question • What is being oxidized in this reaction? - NADH + ADP + Phosphate + O2 + H+ → NAD+ + ATP + H,0 - (A) ADP (В) АТР (C) The phosphorus in ADP but not the whole molecule (D) NADHarrow_forward
- VI. Exercise 2.1 Balance the following half- equations: O2(g) → 0²- > 2- 1. O2(g) (aq) 3+ → Cr³+ 2. Cr₂07 (aq) 3. Cl(aq) → Cl2(g) NHA (aq) 4. NO3(aq) 5. V²+ → VO3 (aq) (aq) (aq) in basic medium in acidic medium in acidic medium in acidic medium in basic mediumarrow_forwardtrong>Exercise 7.2 For each of the following reactions, write the molecular equation, the complete ionic equation, and the net ionic equation. ol type='a'> Aqueous sodium sulfide is mixed with aqueous copper(II) nitrate to produce solid copper(II) sulfide and aqueous sodium nitrate. i>Aqueous ammonium chloride and aqueous lead(ll) nitrate react to form solid lead(ll) chloride and aqueous ammonium nitrate.arrow_forwardThe chemical equation for the hydrolysis of nitrous acid is HNO2(aq)+H2O(l)H3O+(aq)+NO2(aq) Which of the following, when added to a nitrous acid solution, would reduce the degree of ionization of the acid: NaNO3 (aq), KNO2(aq), HNO3(aq), or NaCl(aq)?arrow_forward
- Exercise 2 Directions: Solve the following problems and show the complete solution. You may use a separate sheet of раper for your answer. 1. Calculate the AHrxn for the reaction, Sn (s) + Cl2 (g) → SnCl2 (s) ДHrxn %3D ? Sn (s) + Cl2 (g) Sn (s) + 2C12 (g) SNCI2 (s) + Cl2 (g) SnCl2 (s) → SnCl4 (1); AH = – 545.2 kJ → SnCl4 (1); AH = – 195.4 kJ Eq. 1 Eq.2 Eq.3arrow_forwardIn which of the following compounds does Cl have an oxidation number of +5 ?a) HClOb) KClO2c) Ca(ClO3)2d) more than one correct responsee) no correct response In which of the following sequences of sulfur-containing ions are the ions arranged in order of decreasing oxidation number for S?a) SO32–, SO42–, S2–b) SO42–, S2O32–, S2–c) S2O32–, SO32–, SO42–d) more than one correct responsearrow_forwardPractice chem questionarrow_forward
- Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningIntroduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning