 |  Physical & Chemical Changes 26 Flashcards |  Start |
 | 1 / 26 What is a homogeneous mixture?
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| 2 / 26  A homogeneous mixture is a mixture that has a uniform composition throughout.
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| 3 / 26 Fill in the blank: A solution is a homogeneous mixture of two or more ______.
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| 4 / 26 Substances
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| 5 / 26 True or False: A colloidal solution consists of large particles that settle down over time.
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| 6 / 26  False. Colloidal particles remain suspended and do not settle down.
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| 7 / 26 What are the two main components of a solution?
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| 8 / 26  Solvent and solute
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| 9 / 26 Which of the following is a characteristic of a suspension? A) Uniform composition B) Visible particles C) Cannot be filtered D) Transparent
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| 10 / 26 B) Visible particles
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| 11 / 26 True or False: Mixtures can only be separated by chemical means.
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| 12 / 26  False. Mixtures can be separated by physical means.
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| 13 / 26 What defines an unsaturated solution?
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| 14 / 26  An unsaturated solution contains less solute than the saturation level.
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| 15 / 26 Riddle: I can be made of two or more elements, and when heated, I change into a new substance. What am I?
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| 16 / 26 Compound
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| 17 / 26 Which of the following is an example of a heterogeneous mixture? A) Sugar water B) Air C) Sand and salt D) Alcohol
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| 18 / 26 C) Sand and salt
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| 19 / 26 Fill in the blank: The particles of a solution are smaller than ______ nm in diameter.
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| 20 / 26 1
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| 21 / 26 What is the main difference between metals and non-metals?
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| 22 / 26  Metals are good conductors of heat and electricity, while non-metals are poor conductors.
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| 23 / 26 True or False: All elements are found in solid state at room temperature.
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| 24 / 26  False. Some elements are in a gaseous or liquid state at room temperature.
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| 25 / 26 Riddle: I am a mixture of metals, and you can’t separate me by physical means. What am I?
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| 26 / 26 Alloy
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