Answer:
Both ammonia and chlorine are soluble in water and hence, would dissolve in water if substance X is water and could not be collected. Ammonia gas would react with concentrated sulphuric acid to produce a salt and as ammonia is less dense than air, it should not be collected via a downwards delivery method.
A substance that posses equal number of both hydrogen ions and hydroxide ions in solution is said to be neutral. They do not display properties of an acid or base solely.
The pH is said to be at around 7.
Answer:
A clade needs a derived characteristic. If mammals were a clade, their derived characteristic would be having hair.
Mycelium. I hope this helps. :-)
