Saturday, August 22, 2020
Any Help Free Essays
Survey Sheets for Chapter 20. 1. Accepting the accompanying response continues the forward way, 3 Sn4+(aq) + 2 Cr(s) ? 3 Sn2+(aq) + 2 Cr3+(aq) 4+ a. We will compose a custom article test on Any Help or on the other hand any comparative point just for you Request Now Sn (aq) is the lessening specialist and Cr(s) is the oxidizing operator. b. Cr(s) is the diminishing operator and Sn2+(aq) is the oxidizing specialist. c. Sn4+(aq) is the lessening specialist and Sn2+(aq) is the oxidizing operator. d. Cr(s) is the diminishing operator and Cr3+(aq) is the oxidizing specialist. e. Cr(s) is the decreasing operator and Sn4+(aq) is the oxidizing specialist. 2. The accompanying response happens precipitously. H+(aq) + Ca(s) ? Ca2+(aq) + H2(g) Write the fair oxidation half-response. a. 2 H+(aq) + 2 eâ⬠? H2(g) b. 2 H+(aq) ? H2(g) + 2 eâ⬠c. H2(g) ? 2 H+(aq) + 2 eâ⬠d. Ca(s) + 2 eâ⬠? Ca2+(aq) e. Ca(s) ? Ca2+(aq) + 2 eâ⬠3. Compose a fair half-response for the decrease of CrO42ââ¬(aq) to Cr(OH)3(s) in a fundamental arrangement. a. CrO42ââ¬(aq) + 3 OHââ¬(aq) + 3 eâ⬠? Cr(OH)3(s) + 2 O2(g) b. CrO42ââ¬(aq) + 3 H+(aq) + 3 eâ⬠? Cr(OH)3(s) c. CrO42ââ¬(aq) + 3 H+(aq) ? Cr(OH)3(s) + 2 eâ⬠d. CrO42ââ¬(aq) + 4 H2O( ) + 3 eâ⬠? C r(OH)3(s) + 5 OHââ¬(aq) e. CrO42ââ¬(aq) + 3 OHââ¬(aq) ? Cr(OH)3(s) + 2 O2(g) 4. Compose a reasonable concoction condition for the oxidation of Cd(s) by concentrated nitric corrosive, creating NO2(g) and Cd2+(aq). a. HNO3(aq) + Cd(s) ? Cd2+(aq) + NO2(g) + OHââ¬(aq) b. 2 HNO3(aq) + Cd(s) ? Cd2+(aq) + 2 NO2(g) + 2 OHââ¬(aq) c. HNO3(aq) + Cd(s) + H+(aq) ? Cd2+(aq) + NO2(g) + H2O( ) d. 4 HNO3(aq) + Cd(s) ? Cd2+(aq) + 2 NO2(g) + 2H2O( ) + 2 NO3ââ¬(aq) e. HNO3(aq) + Cd(s) ? Cd2+(aq) + NO2(g) Answer Section MULTIPLE CHOICE 1. 2. 3. 4. ANS: ANS: ANS: ANS: E D Step by step instructions to refer to Any Help, Essay models
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