Answer:
Characteristics of noble gases :
- Conduct electricity.
- Odorless.
- Colorless.
Hope it helps!
A from is heterogeneous because it’s particles are different and not evenly mixed.
Here's the numbers
H = +1
Cl = -1
Aldehydes may oxidize to form carboxylic acid <span>exception to oxidizing formaldehyde with strong oxidizing agent.
HCHO + 3[O] = CO</span>₂ + H₂O