Các biện pháp an toàn khi sản xuất và sử dụng pháo hoa chứa NH4Cl và NaNO2?

Jul 14, 2016 ... 1) Các phương trình hóa học: 2Al + 2NaOH + 2H2O → NaAlO2 + 3H2. NaOH + NH4Cl → NaCl + NH3 + H2O. NaAlO2 + NH4Cl + H2O → Al(OH)3¯ +NH3 + NaCl. ... Ammonium Chloride (NH4Cl) . . . . . . . . . . . . . . . . . . . . . . . . . 2-99. 2-36 Ammonium Chromate [(NH4)2CrO4 ... 198) Al(OH)3 + NaOH --→ NaAlO2 + H2O. 199) Al2O3 + Na2CO3 --→ NaAlO2 + CO2 ... 283) (NH4)3AsS4 + HCl --→ As2S5 + H2S + NH4Cl. 284) Au + KCN + O2 + H2O ... On adding ammonium chloride to a solution ammonium hydroxide. View Solution · When ferrous sulphate is added to mercuric chloride then. View Solution. DINESH ... Jun 30, 2020 ... What information is not conveyed by a balanced chemical equation? Complete and balance the following equation: \[\ce{NH4Cl + Ca(OH)2 ->}\]. ammonium chloride, but not in aqueous sodium chloride? A The ionic radius of the NH4. + ion is similar to that of Mg2+ but not that of Na+. B NH4Cl ... Sulphide (S2– ). Take 1 mL of water extract and make it alkaline by adding ammonium hydroxide or sodium carbonate extract. Add a drop of sodium nitroprusside. Mar 23, 2021 ... In this video we'll balance the equation Al2O3 + NaOH + H2O = NaAl(OH)4 and provide the correct coefficients for each compound. Sep 27, 2024 ... ... NaOH to form sodium aluminate (NaAlO2). ... Electrochemical investigation on effect of sodium thiosulfate (Na2S2O3) and ammonium chloride (NH4Cl) ... Acidic Reactants (90) ; NaHSO · sodium hydrogen sulfate ; NH4Br, ammonium bromide ; NH4Cl, ammonium chloride (salmiac) ; NH4H2PO · ammonium dihydrogen phosphate ; NH4 ...