Al4C3+12H2O=4Al(OH)3+3CH4
Схема реакции 3Br2 -> 2C6H3Br3O 3*2*80 г Br2 = 2*(12*6+3+80*3+16) г C6H3Br3O 480 г = 662 г х г = 24 г <span>х = 24*480/662=17,4 г</span>
<span>Si</span>⁺⁴<span>O</span>²⁻<span>2.Si</span>⁺⁴<span>Cl</span>⁻<span>4.Mg</span>²⁺<span>2Si</span>⁴⁻<span>.H</span>⁺<span>2S</span>⁺⁴<span>O</span>²⁻<span>3.K</span>⁺<span>N</span>⁺⁵<span>O</span>²⁻<span>3.K</span>⁺<span>2Cr</span>⁺⁶<span>2O</span>²⁻<span>7</span>
<span>1.2
2.1
3.4
4.3
5.2
6.4
7.2
8.1
9.3
10.3
11.2
12.3
13.1
14.4
15.1 5
16.1 4
17. A2
Б4
В2
18. А3
Б4
В1</span>