Answer: HF-dipole- dipole interaction
CH3OH- dipole-dipole interaction
CaCl2- ion-ion interaction
Explanation:
Both CH3OH and HF possess permanent dipoles which interact with water leading to the dissolution of the above named substances. Remember that water also possesses a permanent dipole. Which can interact with the dipoles on other polar molecules. CaCl2 is purely ionic and interacts with water via ion-dipole mechanism.
Answer:1 Boiling
Explanation:
Salt (Solute) + water (solvent) = Solution.
Salt dissolves in water, therefore, the only way to recover the salt is by boiling (evaporation) the solution.
Answer:

Explanation:
The balanced equation is
I₂(g) + Br₂(g) ⇌ 2IBr(g)
Data:
Kp = 280
p(IBr) = 0.200 atm
1. Set up an ICE table.
Let p = the initial pressure of IBr. Then

2. Calculate p(I₂)
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Check:

For Ar :
1 mol ------------ 22.4 L ( at STP )
7.6 mol ---------- x L
x = 7.6 * 22.4
x = 170.24 L
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For C2H3:
1 mol ------------ 22.4 ( at STP)
0.44 mol --------- y L
y = 0.44 * 22.4
y = 9.856 L
hope this helps !.
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