Saturday, February 21, 2015

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TEST 1 - Redox READKCE polyethylene glycol Task 1 - Reaction halides Adjust the following reaction halides. First 2 Cl + NaI NaCl + I 2 second F 2 NaF + NaCl + Cl 2 Br 2 3rd + NaBr NaI + I 2 Task 2 - Determine the reaction products products in subsequent reactions. Adjust the unadjusted equation. 1st H 2 SO 4 + NaOH ........... ........... polyethylene glycol second NaOH + HCl ........... + ........... third CaCO 3 - heat -> ........... ........... Task 3 - Determine the oxidation number oxidation numbers bearing elements polyethylene glycol or groups. First Ag NO 3 + Cl Na Na NO 3 + AgCl second Ca CO 3 + H 2 Cl Ca Cl 2 + CO 2 + H 2 O 3rd H 2 SO 4 + O Cu CuSO 4 + H 2 O (NO 3) - ......... oxidation polyethylene glycol number of Cl - oxidation number ......... Na - oxidation number ......... (CO 3) - oxidation number. ........ H - oxidation number ......... Ca - oxidation number ......... C - oxidation number ......... (SO 4 ) - oxidation number polyethylene glycol ......... Cu - O oxidation number ......... - oxidation number ......... Task 4 - Redox reactions Adjust polyethylene glycol the following reactions and determine the oxidation numbers. 1st) ... Cu ... + HNO 3 NO 2 + ... ... Cu (NO 3) 2 + H 2 O ... 2nd) ... Cu ... + HNO 3 NO + ... ... Cu (NO 3) 2 + H 2 O ... 3rd) ... ... Ag + H 2 SO 4 ... Ag 2 SO 4 + SO 2 ... ... + H 2 O Task 5 - Soli a) Determine the names of these salts. b) Determine the formula polyethylene glycol of the salt. a) the names of salts of Cd (NO 3) 2 ........................................ KClO ................................. ................ ....................... Na 2 SO 3 ....................... ................................. b) formula salt potassium polyethylene glycol permanganate ........... ............... .......................... dibasic calcium ammonium carbonate ..... ..................... Task 6 - anions and cations Define names of the following cations or anions. (PO 4) 3- ................................ (SO 4) 2- ...... .......................... (HCO 3) - ................... ................................ ............. K + (NH 4 ) + Ca 2+ ................................ ............. ................... polyethylene glycol Piro
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