х г 56л
Mg + 2HCL = MgCl2 + H2
2моль 1моль х=(73*56);22,4=182,5г
М=36,5 22,4 л
м=2*36,5=73г
<span>NaOH + HNO3 = NaNO3 + H2O</span>
<span><span>Cu(OH)2 + 2HCl = CuCl2 + 2H2O</span></span>
<span><span><span>Cu(OH)2 = CuO + H2O</span></span></span>
<span><span><span><span>2Fe(OH)3 = Fe2O3 + 3H2O</span></span></span></span>
<span><span><span><span>________________________</span></span></span></span>
<span><span><span><span><span>б)Ca(OH)2</span></span></span></span></span>
<span><span><span><span><span><span>Д)NaOH</span></span></span></span></span></span>
<span><span><span><span><span><span><span>е)Cu(OH)2</span></span></span></span></span></span></span>
Li2O + H2S = H2O + LI2S
3CaO + 2H3PO4 = Ca3(PO4)2↓ + 3H2O
Ответ:9г,AI,AI2S3
Объяснение:Найдем массу серы
2,08-0,75=1,33г
по закону эквивалентов
1,33--------0,75
16----------х х=9,это эквивалент металла
А=Э.В=9*3=27,AI,AI2S3
Вода+сода шипучия таблетка+вода