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General Chemistry Concepts
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Free2 CQ
Learn to distinguish solids from liquids and gases, differentiate chemical changes from physical changes, and identify elements, compounds, and mixtures.
Learn to distinguish solids from liquids and gases, differentiate chemical changes from physical changes, and identify elements, compounds, and mixtures.
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2 CQ
Learn how to determine the number of significant figures in a number, round accurately, and add, subtract, multiply, and divide numbers with sig figs.
Learn how to determine the number of significant figures in a number, round accurately, and add, subtract, multiply, and divide numbers with sig figs.
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3 CQ
Learn how to use scientific notation to represent big and small numbers in a clean fashion. Then look at dimensional analysis and scientific unit conversion.
Learn how to use scientific notation to represent big and small numbers in a clean fashion. Then look at dimensional analysis and scientific unit conversion.
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3 CQ
Take a historical stroll down chemistry lane. Learn how early atomic truths were unveiled, and take a look at some of the early atomic structure models.
Take a historical stroll down chemistry lane. Learn how early atomic truths were unveiled, and take a look at some of the early atomic structure models.
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