A. Formula Writing:The use of oxidation numbers is indispensable in writing chemical formulas ofcompounds. After studying the Law of Definite Composition, the chemical behavior ofgroups of elements in the Periodic Table, and the formation of ionic and covalent bonds, youare now ready to write chemical formulas. Remember that the algebraic sum of theoxidation numbers of all the atoms in a molecule is zero.1. Binary CompoundsIndicate the oxidation numbers of each element in a compound before writing itschemical formula.CompoundOxidation NumbersFormulaEx: Sodium chlorideNa+1NaCI1. Lithium oxide2. Potassium lodide3. Magnesium Bromide4. Aluminum sulfide5. Calcium Fluoride

To write the chemical formula of any compund , first write cation which is followed by anion

Answered: Indicate the oxidation numbers of each…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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10 compounds, polyatomic ions, and elements are listed. You are to find the oxidation numbers of each element in the compound or polyatomic ion and show your work. 1. Fe 6. Na2Cr2O7 2. O2 7. ClO4– 3. CO2 8. BrO– 4. MnO4– 9. IO2– 5. Fe2O3 10. SO42– reactions are listed. You are to balance each of the 5 reactions using the half-reaction method 1. Cr (s) + Ni2+ à Cr 3+ (aq) + Ni (s) 2. Cl2 (aq) + Br– à Br2(aq) + Cl– (aq) 3. Zn (s) + NO3- (aq) à Zn2+ (aq) + N2O (aq) 4. MnO4– (aq) + C2H5OH (aq) –> Mn2+ (aq) + C2H4O (aq) 5. H2S (aq) + Cr2O72- (aq) à S (s) + 3 Cr3+ (aq)
Indicate the oxidation state of the underlined element in the following species. 1. NaMnO, 2. SO,? 3. KIO. 4. NazS,O3 5. PO.
22. Which of the following aqueous solutions contains the greatest number of ions in solution? a. 2.0 L of 2.00 M sodium phosphate b. 2.0 L of 2.00 M calcium chloride c. 3.0 L of 2.00 M potassium chloride d. 2.0 L of 2.50 M sodium chloride e. 1.0 L of 4.00 M potassium carbonate
18. What is the molarity of NaNO3 in a solution that contains 32.5 grams of NaNO3 dissolved in 125 ml of water ? a) 3.80 Mc) 0.00306 M b) 32.5 M d) 3.06 M
= ly sunny If an ion consists of a single atom, what can be said about the value of the oxidation number of the atom? O 0 smaller than the charge of the ion bigger than the charge of the ion equal to the charge of the ion $ FS 5 O Search 6 FB & 7 F9 ★ 8 Sc ( 9 a 81 0 G
etermine the oxidation number (oxidation state) of each element in CH4. C: H: Determine the oxidation number (oxidation state) of each element in SO2. S: O: Determine the oxidation number (oxidation state) of each element in BF3. B: F:
A laboratory stock solution has a molar concentration of 6.70 M NaOH. Calculate the volume (in milliliter) of this stocksolution that would be needed to prepare 583 milliliters of 0.395 M NaOH. A. 34.4 B. 26.9 C.41.9 D.19.4 E.49.4
12. A 4.00 g sample of KCl is added to 10.0 mL flask, which is then filled to the calibration mark with water to form Solution 1. Next, 2.00 mL of Solution 1 is then added to a 2.00 L flask and the flask is filled with water to the calibration mark to form Solution 2. What is the molarity of Solution 2?
Assign oxidation state to the underlined element. 1. KCLO3
Which of the following substances are likely to be soluble in water? a. Ag2O b. Ba(NO3)2 c. Fe2O3 d. KCl
1. Would tin react with a copper (II) nitrate solution? Explain your answer and show any reaction that might oCcur. The Activity Series Lithium Potassium Barium These metals displace hydrogen from water Calcium Sodium Magnesium Aluminium Zinc Chromium Iron These metals displace hydrogen from acids. Cadmium Nickel Tin Lead Hydrogen Сopper Mercury Silver These metals do not displace hydrogen from Acids or water. Gold
A 20.0 g of Na2CO3 (106.0 g/mol) is dissolved in 75.0 mL of 0.300 M NaOH. What is the molarity of the Na* in the resulting solution? Assume the volume does not change. O a. 1.41 M O b. 5.63 M O c. 1.55 M O d. 2.82 M O e. 5.33 M

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Indicate the oxidation numbers of each element in a compound before writing its chemical formula. Compound Oxidation Numbers Formula Ex: Sodium chloride Na*1 cr' NacI 1. Lithium oxide 2. Potassium lodide 3. Magnesium Bromide 4. Aluminum sulfide 5. Calcium Fluoride