<em>Приветствую</em>
₁ ₂ ₃ ₄
Mg → MgSO₄ → Mg(OH)₂ <span>→ MgO </span>→ MgCl₂
1. Mg + H₂SO₄ = MgSO₄ + H₂↑
<span>2. MgSO</span>₄ + 2NaOH = Mg(OH)₂↓ + Na₂SO₄
<em> t</em>
3. Mg(OH)₂ = MgO + H₂O
4. <span>MgO + 2HCl = MgCl</span>₂ <span>+ H</span>₂<span>O</span>
1) Sn (+2) + 2Cl(-) +HOH = SnOH(+) + H(+) +2Cl(-)
SnCl2 + H2O = SnOHCl + HCl среда кислая
2) Na(+) + HCO3 (-) + HOH = H2CO3 + OH(-) + Na(+)
NaHCO3 + H2O = CO2 + H2O + NaOH среда щелочная
3) 2Na(+) + S(-2) + HOH = HS(-) + OH(-) + 2Na(+)
Na2S + H2O = NaHS + NaOH среда щелочная
1а.2-метилбутан
б.2,3-диэтилгексан
2.а. СH3
|
CH3-C-CH2-CH3
|
CH3
b CH3 CH3
| |
CH3-CH2-CH -C-CH3
|
CH3
v. C2H5
|
CH3-CH2-C-CH2-CH2CH3
|
C2H5
3.a.C+2H2=CH4
3CH4=C3H8+2H2 t kat
C3H8+Cl2=C3H7Cl+HCl
b.2C2H6=C4H10+H2 t kat
C4H10+Cl2=C4H9Cl+HCl
C4H9Cl+2Na+CH3Cl=C5H12+2NaCl
А)водород
б) Mg
в)Na, Mg, Al
г) B, C, N, O, F, Ne
д)Br
е)Cu