Which statement about the physical change of liquid water boiling into steam is true?
What is an example of a physical change?
Eugene describes the physical property of a material as “sweet and floral.” What physical property of the material is Eugene most likely observing?
Water is made of two hydrogen atoms and one oxygen atom bonded together. Julia is describing how water undergoes a physical change when it boils. She says that the particles shift to be farther apart and that the oxygen and hydrogen separate. She also says that the total mass of the steam is the same as the initial water, and that heat energy was required to cause the change. She finishes her description by saying that the steam can be turned back into water if it is cooled.Which is the mistake in her description?
Liquid plastic is frozen in a physical change that increases its volume. What can be known about the plastic after the change?
When liquid gold becomes a solid, its particles get closer together. Which best describes what happened to the gold?
If there is 8 g of a substance before a physical change, how much will there be afterwards?
Which scenario is an example of a physical change?
When water (H2O) freezes into ice, some of the properties have changed. What stays the same?
Wax melts when it is heated. Which most likely describes what is true of the result of this reaction?
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