1 3 2 5 3 5 4 3 Brodbelt013405 007 100points In the redox conversion of Ni 2 to

1 3 2 5 3 5 4 3 brodbelt013405 007 100points in the

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1. 3 - 2. 5+ 3. 5 - 4. 3+ Brodbelt013405 007 10.0points In the redox conversion of Ni 2+ to NiO 4 - , the oxidation number of Ni goes from ( - 2, 0, +2) to ( - 1, +1, +7, +9). Recall that the oxidation number of oxygen is typically - 2. 1. 0; +9 2. 0; +7 3. - 2; +1 4. - 2; +7 5. - 2; +9 6. +2; - 1 7. 0; +1 8. +2; +9 9. +2; +7 Brodbelt0409 008 10.0points If the oxidation state of H is +1 and O is - 2, what is the oxidation state of C in C 2 H 4 O? 1. +2 2. +1 3. - 1 2 4. - 2 5. - 1 Brodbelt0418 009 10.0points Determine the oxidation number of carbon in CO 2 - 3 . Recall that the oxidation number of oxygen is always - 2. 1. - 4 2. - 6 3. +4 4. - 2 5. +2 6. +6 ChemPrin3e1550 010 10.0points What is the oxidation number of noble gas in H 2 XeO 4 ? 1. +3 2. - 3 3. - 6
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Version 001 – unit 1 – coslet – (03) 3 4. - 2 5. +6 6. +2 ChemPrin3eK08 011 10.0points Some compounds of hydrogen and oxygen are exceptions to the common observation that H has oxidation number +1 and O has oxidation number - 2. Assuming that the metal has the oxidation number of its most common ion, find the oxidation number of O in the compound KO 2 . 1. 1 2 2. - 2 3. - 3 4. 1 5. 3 6. - 1 2 7. - 1 8. 1 3 9. - 1 3 Msci040701 012 10.0points Which of the following compounds contains an element with an oxidation number of +6? 1. HClO 2. HNO 3 3. HBrO 4 4. H 2 SO 4 5. HClO 3 Sparksoxidnum003 013 10.0points Calculate the oxidation numbers for each ele- ment in Ca 3 (PO 4 ) 2 . 1. Ca = +2 , P = +5 , O = - 2 2. Ca = +6 , P = +10 , O = - 16 3. Ca = +3 , P = +7 , O = - 2 4. Ca = +2 , P = +6 , O = - 2 5. Ca = +2 , P = +1 , O = - 1 ChemPrin3eI07 014(part1of3)10.0points When aqueous solutions of iron(III) sul- fate (Fe 2 (SO 4 ) 3 ) and sodium hydroxide were mixed, a precipitate formed. What is the precipitate? 1. Fe(OH) 3 2. No precipitate forms. 3. Fe 2 (SO 4 ) 3 4. Na 2 SO 4 5. NaOH 015(part2of3)10.0points What, if any, precipitate forms when aque- ous solutions of silver nitrate (AgNO 3 ) and potassium carbonate are mixed? 1. AgNO 3 2. No precipitate forms. 3. Ag 2 CO 3 4. K 2 CO 3 016(part3of3)10.0points What, if any, precipitate forms if aqueous
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Version 001 – unit 1 – coslet – (03) 4 solutions of lead(II) nitrate (Pb(NO 3 ) 2 ) and sodium acetate are mixed? 1. No precipitate forms. 2. (CH 3 COO) 2 Pb 3. Pb(NO 3 ) 2 4. CH 3 COONa DAL04011 017 10.0points What are the resulting spectator ions when aqueous solutions of Rb 2 O and CaCl 2 are added together?
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