Mixtures And Solutions: Question Preview
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Which of the following is the best example of a solution? |
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| 1) water and gravel | 2) ice tea | 3) iron filings and sand | 4) trail mix | |
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Which of the following substances is soluble in water? |
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| 1) baking soda | 2) pepper | 3) citric acid | 4) sand | |
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Which factor will NOT cause a solute to dissolve more quickly? |
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| 1) shaking | 2) stirring | 3) heating the water | 4) adding ice to the water | |
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A liquid used to dissolve a solute is called a __________________. |
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| 1) solvent | 2) solution | 3) solubility | 4) solute | |
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Which of the following describes the characteristics of a gas? |
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| 1) tightly packed particles which keep their shape and have a definite volume | 2) particles that do not move and have no shape | 3) particles that flow freely, without a definite shape or volume and fill their container | 4) more loosely packed particles that flow onto one another, take the shape of their container and have a definite volume | |
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Which method would be best for separating citric acid and water? |
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| 1) evaporation | 2) chromotography | 3) filtering through a coffee filter | 4) floatation | |
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How could you make a more concentrated solution? |
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| 1) Add more solvent | 2) Pour out some of the solution | 3) Put the solution in the refrigerator | 4) Add more solute | |
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Which of the following describes the characteristics of a solid? |
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| 1) tightly packed particles which keep their shape and have a definite volume | 2) particles that do not move and have no shape | 3) particles that flow freely, without a definite shape or volume and fill their container | 4) more loosely packed particles that flow onto one another, take the shape of their container and have a definite volume | |
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How can you tell which solution is more concentrated when they look the same and have the same volume? |
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| 1) Use a thermometer to test temperatures | 2) Use a balance to see which is the heaviest | 3) Taste the mystery solution | 4) Put your finger in the mystery solution | |
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Which substance would dissolve in water the most quickly? |
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| 1) sand | 2) baking soda | 3) large salt particles | 4) small salt particles | |
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