Task 1 - Reaction halides perk Adjust the following reaction halides. 1st Cl 2 + 2 NaI 2 NaCl + I 2 second F 2 + 2 NaCl + NaF 2 Cl 2 3. Br 2 + 2 NaI + NaBr 2 I 2 Task 2 - Determine the reaction products products in subsequent reactions. Adjust the unadjusted equation. perk 1st H 2 SO 4 + 2 NaOH Na 2 SO 4 + H 2 O 2 second NaOH + HCl NaCl + H 2 O 3rd CaCO 3 - heat -> CaO + CO 2 Task 3 - Determine the oxidation number oxidation numbers bearing elements or groups. First AgNO 3 + NaCl NaNO 3 + AgCl second CaCO 3 + 2HCl CaCl 2 + CO 2 + H 2 O H 2 SO 3rd + CuO 4 CuSO 4 + H 2 O (NO 3) - oxidation perk number -I Cl - oxidation number -I Na - oxidation number + I (CO 3) - oxidation number of -II H - oxidation number + I Ca - oxidation state + II C - oxidation number + IV (SO 4) - oxidation number of -II Cu - oxidation number II + O - oxidation number perk of -II Task 4 - Redox reactions Adjust the following reactions and determine the oxidation numbers. First) Cu 4 + HNO 3 2 NO 2 + Cu (NO3) 2 + 2 H 2 O second) 3 Cu + 8 HNO 3 2 NO + 3 Cu (NO 3) 2 + 4H 2 O 3rd ) 2 Ag + 2 H 2 SO 4 Ag 2 SO 4 + SO 2 + H 2 O 2 Task 5 - Soli a) Determine the names of these salts. b) Determine perk the formula of the salt. Cd (NO 3) 2 - KClO cadmium perk nitrate - potassium hypochlorite Na 2 SO 3 -, sodium perk sulfite, potassium permanganate - KMnO4 dicalcium phosphate - ammonium carbonate CaHPO 4 - (NH 4) 2 CO 3 Task 6 - anions and cations Specify names following cations or anions. (PO 4) 3 - and phosphate. (SO 4) 2 - and sulfate. (HCO 3) - - and bicarbonate. K + - Potassium k. (NH 4) + - Ammonium perk k. Ca 2+ - calcium to . 2008 Dejvikovy.Estranky http://dejvikovy.estranky.cz copyrightable

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