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Which describes a chemical change?
an ice cube melting
physical
a piece of paper burning
a physical change, because the matter changed its state
chocolate left in a warm car to melt
The water and bottle weigh the same as they did when they went in the freezer.
acid in the stomach digesting food
weight
Which type of change occurs when the size, shape, appearance, or volume of a substance is changed without changing its composition?
an ice cube melting
physical
a piece of paper burning
a physical change, because the matter changed its state
chocolate left in a warm car to melt
The water and bottle weigh the same as they did when they went in the freezer.
acid in the stomach digesting food
weight
Which property of an ice cube remains THE SAME before and after it melts?
an ice cube melting
physical
a piece of paper burning
a physical change, because the matter changed its state
chocolate left in a warm car to melt
The water and bottle weigh the same as they did when they went in the freezer.
acid in the stomach digesting food
weight
Which is the best example of a change that can be undone?
an ice cube melting
physical
a piece of paper burning
a physical change, because the matter changed its state
chocolate left in a warm car to melt
The water and bottle weigh the same as they did when they went in the freezer.
acid in the stomach digesting food
weight
Water is boiled and turns to vapor. The vapor is cooled and changes back into water. Which best describes what has occurred?
an ice cube melting
physical
a piece of paper burning
a physical change, because the matter changed its state
chocolate left in a warm car to melt
The water and bottle weigh the same as they did when they went in the freezer.
acid in the stomach digesting food
weight
Which example best describes a physical change?
an ice cube melting
physical
a piece of paper burning
a physical change, because the matter changed its state
chocolate left in a warm car to melt
The water and bottle weigh the same as they did when they went in the freezer.
acid in the stomach digesting food
weight
John filled a bottle half way with water, placed a lid on it, then put it in the freezer. How does the weight of the water and bottle compare before and after it is in the freezer?
an ice cube melting
physical
a piece of paper burning
a physical change, because the matter changed its state
chocolate left in a warm car to melt
The water and bottle weigh the same as they did when they went in the freezer.
acid in the stomach digesting food
weight
Which change is most likely to produce a new substance?
an ice cube melting
physical
a piece of paper burning
a physical change, because the matter changed its state
chocolate left in a warm car to melt
The water and bottle weigh the same as they did when they went in the freezer.
acid in the stomach digesting food
weight
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