10al + 6nh4clo4 → 4al 2o3 + 2alcl 3 + 12h2o + 3n2
which statements about this reaction are correct?
1 aluminium is oxidised.
2 chlorine is reduced.
3 nitrogen is oxidised.

1 Aluminium is oxidised Al - 3e = Al⁺³

2 Chlorine is reduced  Cl⁺⁷ + 8e = Cl⁻¹

3 Nitrogen is oxidised 2N⁻³ - 6e = N₂

1. and 2. question: in which equation? or i don't understand you, 3. a), 4. c), 5. c), 6. b), 7. d), 8. d) if small number is underlined(behind symbol) , b) if big number is underlined(in front of symbol)9. what is underlined there? 10. c)

The answer would be