AP Chemistry· difficulty 2/5
Two solvents are depicted: water (polar, with partial charges marked) and hexane (nonpolar).
Which compound dissolves best in water?
I2
NaCl (ionic)
Hexane (C6H14)
Octane
Explanation
Like dissolves like: water is polar and can stabilize ions through ion-dipole interactions, so NaCl dissolves; nonpolar species do not.
Want 10 more like this — adaptive to your weak spots?
Which substance is most likely to be insoluble in water?…
chevron_rightWhich compound when mixed with Na2SO4 forms a precipitate?…
chevron_rightHow much KNO₃ crystallizes from a 100 g saturated solution at 50 °C cooled to 20 °C? (assume 100 g solvent throughout)…
chevron_right