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i Part A: Multiple Choice (Circle the best answer) 1. 10. A solution is a: a) Chemical compound b) Mixture with uneven composition c) Homogeneous mixture of two or more substances d) Heterogeneous mixture . Inasolution of salt water, salt is the: a) Solvent b) Solute c) Suspension d) Reactant The solvent in most solutions is usually: a) A gas b) A solid c) A liquid d) A metal . When a solid dissolves in a liquid, the process occurs because: a) The solid melts b) Solvent molecules attract and surround solute particles c) The solute evaporates d) A chemical reaction takes place . Increasing the temperature usually: a) Decreases solubility of solids b) Increases solubility of solids in liquids c) Has no effect on solubility d) Decreases the rate of dissolving Stirring a solution helps it dissolve faster because it: a) Adds more solute b) Increases contact between solute and solvent particles c) Changes the chemical composition d) Decreases the solvent's surface area Crushing a solid solute before dissolving increases the rate of dissolving because: a) It increases surface area b) It increases solubility c) It decreases surface area d) It lowers temperature . Asolution that cannot dissolve any more solute at a given temperature is called: a) Unsaturated b) Saturated c) Dilute d) Concentrated The phrase \"like dissolves like\" means: a) Polar substances dissolve in nonpolar solvents b) Nonpolar substances dissolve in polar solvents c) Polar substances dissolve in polar solvents d) Solutes dissolve in any solvent The solubility of gases in liquids decreases when: a) Pressure increases b) Temperature increases c) Solvent cools d) Solute concentration decreases