1)2Al + 6HBr = 2AlBr3 + 3H2
2)<span>6 </span><em>HBr</em><span> + </span><em>Al2O3</em><span> = 2 AlBr3 + 3 H2O</span>
<span>3)<em>Al</em><span>(</span><em>OH</em><span>)</span><em>3</em><span> + 3 </span><em>HBr</em><span> = AlBr3 + 3 H2O</span></span>
<span><span>4) <span>AgNo3+KCL = AgCl↓ + KNo3 - это уравнение верно</span></span></span>
<span><span><span>Успехов в учебе!</span></span></span>