I will go for the last one
Answer:
Arranged in order of most soluble to least soluble in water:
Explanation:
Water is a polar solvent due to the electric charge it possesses. Hence it would only dissolve polar molecules.
Non-polar molecules would be dissolved by non-polar solvents.
Short chain alcohols are more soluble than butanol, but generally the polar -OH group is soluble in water.
Answer:
a and b.
Explanation:
I am assuming you mean LICl and NaCl.
a and b are soluble in water.
AgCl is insoluble - If you add sliver nitrate solution (Ag NO3 ) to NaCl solution a white precipitate of AGCl is formed.
Cold air mass and warm air mass
M = 20 g
Volume = 12 cm³
D = m / V
D = 20 / 12
D = 1.67 g/cm³
hope this helps!