<span>Na + Cl→ <span>Na<span>Cl
</span></span></span><span><span>3 Mg</span> + <span>2 <span>H3PO4</span></span> → <span>Mg3<span>(PO4)</span>2</span> + <span>3 <span>H2
</span></span></span><span><span>2 Al</span> + <span>3 <span>H2SO4</span></span> → <span>3 <span>H2</span></span> +<span><span>(SO4)</span><span>3
</span></span></span><span>Mg + <span>H2SO4</span> → <span>MgSO4</span> + <span>H<span>2
</span></span></span><span><span>Fe<span>(OH)</span>3</span> + <span>3 <span>HNO3</span></span> → <span>Fe<span>(NO3)</span>3</span> + <span>3 <span>H2<span>O
</span></span></span></span><span><span>Fe2O3</span> + <span>6 <span>HCl</span></span> → <span>2 <span>FeCl3</span></span> + <span>3 <span>H2<span>O
</span></span></span></span><span><span>3 <span>MgO</span></span> + <span>2 <span>H3PO4</span></span> → <span>Mg3<span>(PO4)</span>2</span> + <span>3 <span>H2<span>O
</span></span></span></span><span>Au + <span>H2SO4</span> → <span>Ø
</span></span><span><span>NaCl</span> + <span>HNO3</span> → <span>NaNO3</span> + <span>H<span>Cl</span></span></span>
1. Структурная изомерия:
а). Изомерия углеродного скелета;
б). Местоположение двойной связи
2. Меж классовая изомерия
вот на фотографии должно быть видно
<span>2 метил - пентан (развернутая формула) + Cl2
</span>ответ в фото.
M(H2O2)=200*0.034=6.8г
68г------------------22,4л
2Н2O2=2H2O+O2
6,8г-----------------хл
х=6,8*22,4/68=2,24л