1. If the solvent and solute in the same state, such as solids with solids. Will the substance quantity rather than as a solvent. Substance and with less a solute
2.If the solvent and solute in the different status, such as solid-liquid mixed state any reasons like substance To treat the contaminated solvent again of a solute such as a salt (solid) and water (liquid).So bring a solvent and salt as solute.
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