Which of the following statements about particles is TRUE? I. All particles can be seen with an electron microscope.II. There are spaces between particles and they are the same in solids, liquids, and gases.III. The particles move at different speeds in solids, liquids, and gases.IV. Particles are very tiny and they cannot be seen with the naked eye.Group of answer choicesI and IV onlyI, III, and IV onlyII and III onlyIII and IV only PreviousNext
Question
Which of the following statements about particles is TRUE? I. All particles can be seen with an electron microscope.II. There are spaces between particles and they are the same in solids, liquids, and gases.III. The particles move at different speeds in solids, liquids, and gases.IV. Particles are very tiny and they cannot be seen with the naked eye.Group of answer choicesI and IV onlyI, III, and IV onlyII and III onlyIII and IV only PreviousNext
Solution
The correct answer is III and IV only.
Explanation:
Statement I is not true because not all particles can be seen with an electron microscope. Some particles are too small to be seen even with an electron microscope.
Statement II is not true because the spaces between particles are not the same in solids, liquids, and gases. In solids, the particles are closely packed together with little space between them. In liquids, the particles are less closely packed and move around each other, creating more space between them. In gases, the particles are far apart with a lot of space between them.
Statement III is true because the particles do move at different speeds in solids, liquids, and gases. In solids, the particles vibrate in fixed positions and do not move around much. In liquids, the
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