Answer:
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C
Explanation
I would guess water vapor because it cant really change form from there unless you split it
I also think it’s B but not quite sure
C12H22O11
✔ covalent
Mg(OH)2
✔ Ionic
H2O
Cu3Zn2
✔ metallic
Au
Explanation:
We shall apply gas law formula
P₁ V₁ / T₁ = P₂V₂ / T₂
.914 x 350 / ( 273 + 22.7 ) = 1 x 220 / T₂
1.0818 = 220 / T₂
T₂ = 203.36 K
= - 69.64 ⁰ C
