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Which of the following is the simplest type of substance with unique physical and chemical properties?
Which of the following is the simplest type of substance with unique physical and chemical properties?
Which of the following is an example of an element?
Which of the following is an example of an element?
Which of the following is a substance composed of two or more elements that are chemically combined?
Which of the following is a substance composed of two or more elements that are chemically combined?
Which of the following is an example of a compound?
Which of the following is an example of a compound?
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Which of the following is a group of two or more elements and/or compounds that are physically intermingled?
Which of the following is a group of two or more elements and/or compounds that are physically intermingled?
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