Trắc nghiệm: (c) 2AlCl3+ 3Na2S + 6H2O → 2Al(OH)3+ 3H2S + 6NaCl;,(c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3 + 3H2S + 6NaCl,(c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3 + 3H2S + 6NaCl,          (c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3 + 3H2S + 6NaCl,(c) 2AlCl3 + 3Na2S + 6H2O →  2Al(OH)3 + 3H2S + 6NaCl,(c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3 + 3H2S + 6NaCl,(c) 2AlCl3+ 3Na2S + 6H2O → 2Al(OH)3+ 3H2S + 6NaCl;,(c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3 + 3H2S + 6NaCl,(c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3 + 3H2S + 6NaCl,          (c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3 + 3H2S + 6NaCl,(c) 2AlCl3 +3Na2S + 6H2O → 2Al(OH)3 +3H2S +6NaCl,(c) 2AlCl3 + 3Na2S + 6H2O →  2Al(OH)3 + 3H2S + 6NaCl,(c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3↑+ 3H2S↑ + 6NaCl,(c) 2AlCl3+ 3Na2S + 6H2O → 2Al(OH)3+ 3H2S + 6NaCl;

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(c) 2AlCl3+ 3Na2S + 6H2O → 2Al(OH)3+ 3H2S + 6NaCl;, (c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3 + 3H2S + 6NaCl, (c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3 + 3H2S + 6NaCl,           (c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3 + 3H2S + 6NaCl, (c) 2AlCl3 + 3Na2S + 6H2O →  2Al(OH)3 + 3H2S + 6NaCl, (c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3 + 3H2S + 6NaCl, (c) 2AlCl3+ 3Na2S + 6H2O → 2Al(OH)3+ 3H2S + 6NaCl;, (c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3 + 3H2S + 6NaCl, (c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3 + 3H2S + 6NaCl,           (c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3 + 3H2S + 6NaCl, (c) 2AlCl3 +3Na2S + 6H2O → 2Al(OH)3 +3H2S +6NaCl, (c) 2AlCl3 + 3Na2S + 6H2O →  2Al(OH)3 + 3H2S + 6NaCl, (c) 2AlCl3 + 3Na2S + 6H2O → 2Al(OH)3↑+ 3H2S↑ + 6NaCl, (c) 2AlCl3+ 3Na2S + 6H2O → 2Al(OH)3+ 3H2S + 6NaCl;

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