Chemistry, 23.09.2019 05:30 NightSun8891

In a solution, the substance that changes phase is the while the substance that does not change phase is
solute, solvent
solvent; solid
solvent, solute
solute; liquid
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question 3
why does stirring increase the rate of solution formation for a solid solute in a liquid solvent?
stirring brings solute particles closer together and provides them with additional energy.
stirring mixes solute particles with solvent particles more thoroughly, providing more chances of interaction.
stirring makes the entire solution warmer so that the temperature increases noticeably.
stirring agitates the solute particles and increases the rate of precipitation.
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question 4
a small crystal of the slightly soluble salt, caso4, dissolves in a solution of calcium sulfate. the original solution must have been:
dilute and saturated
dilute and unsaturated
concentrated and saturated
concentrated and unsaturated

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