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Bài 22: Clo
\(\begin{array}{l}\,KCl{O_3} + 6HCl \to KCl + 3C{l_2} + 3{H_2}O\,\,\,\,\,\\Theo\,pt:{n_{C{l_2}}} = \dfrac{{0,2.3}}{{1}} = 0,6\left( {mol} \right);\\\end{array}\)
=> Chọn D
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