Chemie
Vyberte správné stechiometrické koeficienty: a Pb + b HNO
3
→ x Pb(NO
3
)
2
+ y NO + z H
2
O
A
a = 3, b = 2, x = 3, y = 2, z = 1
✗
B
a = 2, b = 6, x = 3, y = 2, z = 2
✗
C
a = 3, b = 8, x = 3, y = 2, z = 4
✓
D
a = 3, b = 5, x = 3, y = 2, z = 4
✗
Zpět na souhrn otázek