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Which type of changes affect the form of a chemical substance, but not its chemical composition?
Which type of changes affect the form of a chemical substance, but not its chemical composition?
What can physical changes be used to separate?
What can physical changes be used to separate?
Which type of changes involve a change in physical properties?
Which type of changes involve a change in physical properties?
Can physical changes usually be used to separate compounds into chemical elements or simpler compounds?
Can physical changes usually be used to separate compounds into chemical elements or simpler compounds?
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Are physical changes reversible using physical means?
Are physical changes reversible using physical means?
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