Answer:
2
Explanation:
The change of state occurs at a constant temperture and pressure. In the grahp we can see while the time passes, the temperature doesn't change.
The rect number 4 correspond to a liquid-gas phase
Once you balance the enquation you "switch partners" of the element (negative charge to positive charge)
It's a weak base because weak bases don't dissociate completely. If it did, then it would be a strong base.
Freezing something makes it solid and melting something makes it a liquid
<h2>That's all I have to say <3</h2><h2>(ㆆ_ㆆ)</h2>
