Classification of Matter FLASHCARDS

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Classification of Matter

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Matter is everything that has mass and volume.

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Atoms

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Atoms are the building blocks of matter and cannot be broken down into smaller pieces using chemical reactions or physical change.

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Categories of Matter

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Matter can be classified into two major categories: pure substances and mixtures.

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classification of matter

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Matter is classified as either pure substance or mixture. The pure substance are either elements or molecules. Molecules can be elemental or compound.

The mixtures are either homogeneous or heterogeneous

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Pure Substances

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A pure substance is made up of only one kind of material, with identical particles throughout.

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Elements

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Elements are the simplest pure substances, made up of only one type of atom, such as carbon or zinc.

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Diatomic Molecules

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Some elements naturally form diatomic molecules, which are two-atom units of the same element.

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Elements are represented by chemical symbols and ordered by atomic numbers on the periodic table.

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Compounds are pure substances made up of more than one type of element, chemically combined in a fixed ratio.

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Compounds are chemically combined substances with a fixed ratio, such as water (H₂O) and salt (NaCl).

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Mixtures are made up of two or more substances that are not chemically combined.

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Mixtures retain the individual properties of their components because they are not chemically combined.