The gas has already created enough pressure to become a gas, which is the most expandable it could turn in to. Thats what i think, hope it helps.
Answer:
If I could have a super power it would be invisibility. Sometimes you wish you weren't there and if you were hiding from someone then they couldn't find you.
The limiting reagent : NH₃
<h3>Further explanation</h3>
A method that can be used to find limiting reactants is to divide the number of moles of known substances by their respective coefficients, and small or exhausted reactants become a limiting reactant
Reaction
4NH₃(g)+5O₂(g)⇒4NO(g)+6H₂O(g)
mol NH₃ :
![\tt \dfrac{4.5}{17}=0.265](https://tex.z-dn.net/?f=%5Ctt%20%5Cdfrac%7B4.5%7D%7B17%7D%3D0.265)
mol O₂ :
![\tt \dfrac{15.8}{32}=0.494](https://tex.z-dn.net/?f=%5Ctt%20%5Cdfrac%7B15.8%7D%7B32%7D%3D0.494)
mol ratio
NH₃ :
![\tt \dfrac{0.265}{4}=0.06625](https://tex.z-dn.net/?f=%5Ctt%20%5Cdfrac%7B0.265%7D%7B4%7D%3D0.06625)
O₂ :
![\tt \dfrac{0.494}{5}=0.0988](https://tex.z-dn.net/?f=%5Ctt%20%5Cdfrac%7B0.494%7D%7B5%7D%3D0.0988)
Limiting reactants : NH₃ (smaller ratio)
Melting can always be changed back. Also remember that a physical change is a change of state. When you melt you go from a solid to a liquid. Flammability is a chemical property because you burn it.