Question 6 of 26 Fill in the blanks: is reduced in the following reaction; Cr₂O7²- + 6S₂03² + 14H* →2Cr³+ + 3S406² +7H₂O A) Cr6+ B) S2+ C) H* D) 0²- E) S406²- 2-
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- Which of the following compounds have the same oxidation level, and which have different levels?Which of the following set of conditions will accompish the following reaction? A) Na, NH3(I), -33oC B) H2, Pd/C C) H2, Lindlar's catalyst D) H2O, H2SO4For the redox reaction given below complete the following: Cr₂O7-2+ H+ + ¯ → Cr+³ + 1₂ + H₂O (a) What is the oxidation no. of Cr in Cr₂O7-²? (b) What is the oxidation no. of 1 in 12 ? (c) Find the element oxidized (d) Find the element Reduced (e) Find the Oxidizing Agent (f) Find the Reducing Agent Choose... Choose... Choose... Choose... Choose... Choose... <►
- 30 of ( 6 once 10. Balance the following oxidation-reduction equation. The reaction occurs in a basic solution. S8 + NO3- SO₂ + NO de2 Which is the correct half reaction for the oxidation of S₂O3²- to S406²-?Complete and balance the following redox reaction in basic solution 2- 3c₂²- 1 + 2 (s) H* CIO₂(g) →CIO₂ (aq) + CIO3(aq) 3 4 H₂O Reset ( (1) LO 5 OH- H 6 (g) H3O+ 7 8 CI • x H₂O 9 (aq) S
- 93 Chemistry I Laboratory Manual, 2019 Revision Questions: gy muibor alo vialom od W (E 1) Samples containing iron(II) ion can be titrated with solutions containing dichromate ion under acidic conditions. OCHS Cr2072- + 6Fe2+ + 14H* → 2Cr+ + 6Fe3+ + 7H2O itio (a) Which ion is oxidized in this reaction? (b) Which ion is the reducing agent in this reaction? ry nistry ple. (c) If a 1.924 g sample containing iron(II) sulfate is dissolved and requires 36.1 mL of 0.0100 M K2Cr2O7 solution to titrate it, what is the percent iron(II) sulfate in the at sample? routine tiration de enin rntory skills on of sodiu de KH ph pu that theFor the redox reaction given below complete the following: CIO; + SO2 - SO + cr (a) What is the oxidation no. of Cl in CIO3 ? Choose... (b) What is the oxidation no. of S in SO, Choose... (c) Find the element oxidized +6 +4 (d) Find the element Reduced -1 +5 (e) Find the Oxidizing Agent CIO3 CI SO2 () Find the Reducing Agent Cr(Q82) What is the oxidation number for phosphorus in each of the following? Please include the positive and negative signs as appropriate. (a) H3PO4 (b) P4 (this reflects the elemental state of phosphorus) (c) PH3 (d) PO43- (e) p3-
- What is the oxidation number of the underlined element in the following compound? a) K2Cr2O7 b) ASO4-3 c) Fe(QH)3 d) K2CrO4 e) [O3-1 2.For the redox reaction given below complete the following: KMNO4 + Na2SO3 + H20 → MnO2 + NazSO4 + KOH (a) What is the oxidation no. of Mn in KMNO4? (b) What is the oxidation no. of S in Na2SO3? (c) Find the element oxidized (d) Find the element Reduced (e) Find the Oxidizing Agent (f) Find the Reducing Agent(Q82) What is the oxidation number for phosphorus in each of the following? Please include the positive and negative signs as appropriate. (a) НзРОД (b) P4 (this reflects the elemental state of phosphorus) (c) PH3 (d) PO43- (e) p3-