1 Cl 2 g 2 NaCls 3 Nas 4 None of these 005 100points Which response includes

1 cl 2 g 2 nacls 3 nas 4 none of these 005 100points

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1. Cl 2 (g) 2. NaCl(s) 3. Na(s) 4. None of these 005 10.0points Which response includes all the following I) BaSO 3 BaO + SO 2 II) 2 K + Br 2 2 KBr III) H 2 CO 3 + Ca(OH) 2 CaCO 3 + 2 H 2 O IV) SnS 2 + 6 HCl H 2 SnCl 6 + 2 H 2 S V) 3 Cl 2 + 6 KOH 5 KCl + KClO 3 + 3 H 2 O that are oxidation-reduction reactions, and no others? 1. I and IV only
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tripathi (pt7882) – HW19 redox 2019 – krall – (2010187) 2 2. II, III and IV only 3. I and V only 4. Another one or another combination 5. II and V only 006 10.0points What is the oxidation number of S in the compound sodium thiosulfate (Na 2 S 2 O 3 )? 1. +4 2. +3 3. - 2 4. +2 007 10.0points In the reaction ClO - 3 Cl - the oxidation state of Cl goes from (+3, +5, +7) to ( - 1, +1). (The oxidation state of oxygen remains - 2.) 1. +5; +1 2. +5; - 1 3. +3; - 1 4. +7; - 1 5. +7; +1 008 10.0points What are the oxidation numbers of S in H 2 S , SO 3 , and SO 2 - 4 ? 1. - 2, +6, +6 2. - 2, +3, +8 3. - 1, +6, +8 4. - 2, +6, +8 5. - 2, +3, +6 009 10.0points Which of the following is a reduction reaction? 1. 2 Br - (aq) Br 2 (g) + 2 e - 2. C(s) + O 2 (g) CO 2 (g) 3. Zn +2 (aq) + 2 e - Zn(s) 4. Cu(s) Cu +2 + 2 e - 5. C 2 H 6 (g) C 2 H 4 (g) + H 2 (g) 010 10.0points Which response contains all of the following I) PCl 3 + 3 H 2 O 3 HCl + H 3 PO 3 II) Fe 2 O 3 + 3 CO 2 Fe + 3 CO 2 III) CaCO 3 + 2 HNO 3 Ca(NO 3 ) 2 + CO 2 + H 2 O that are oxidation-reduction reactions and no others? 1. II and III only 2. I and II only 3. III only 4. II only 5. I only 011 10.0points In the redox conversion of SO 3 to SO - , S is ? and its oxidation number goes from ? to ? 1. reduced; 2 to 6 2. oxidized; 6 to 1 3. reduced; 3 to - 3 4. oxidized; 6 to 2
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tripathi (pt7882) – HW19 redox 2019 – krall – (2010187) 3 5. oxidized; 6 to 3 6. oxidized; 3 to - 3 7. reduced; 6 to 3 8. oxidized; 2 to 6 9. reduced; 6 to 2 10. reduced; 6 to 1 012 10.0points Find the oxidation number for chromium in the three species Cr 2 O 2
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