Question

Daje 20 punktów ponieważ są to 2 zadania ! proszę o pomoc ! :)

Answer 1

85
a. Al₂O₃
b. 3 Fe₂O₃
c. 2 N₀O₂
d. 2 C₄H₁₀

86
a)
1. 2 Pb + O₂ -> 2 PbO
2. 2 Pb + O₂ -> 2 PbO₂
3. Pb + O₂ -> PbO₂
b)
1. O₂ + 2 Zn -> 2 ZnO
2. O₂ + N₂ -> 2NO
3. 5 O₂ + 4 As -> 2 As₂O₅
4. O₂ + S -> SO₂

87
A - Zn
B - C
C - O
1. 2 Zn + O₂ -> 2 ZnO
2. 2 ZnO + C -> CO₂ + 2 Zn
3. C + O₂ -> CO₂
4. 2 H₂ + O₂ -> 2 H₂O
5. 2 HCl + Zn -> H₂ + ZnCl₂