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Matter Classification
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Microscopic Scale Atom – building block of all matter
Molecule – two or more atoms chemically bonded together
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Microscopic Scale Atom Molecule Molecule of element of compound
The smallest unit of an element Ex) Na, Mg, Fe, Ar, Zn, Cu Molecule of element Same element chemically bonded Ex) H2, O2, N2, F2, Cl2, Br2, I2, S8 Molecule of compound Different elements chemically bonded Ex) H2O, CO2, HCl, CH2O
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Matter Pure Substances Mixtures Element Compound Homogeneous Mixture
NO Can it be separated by physical means? YES Pure Substances Mixtures Can it be separated through chemical reactions? Can it be separated easily? NO YES NO YES Element Compound Homogeneous Mixture Heterogeneous Mixture
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Matter – material that has mass and takes up space
NO Can it be separated by physical means? YES Pure Substances Mixtures Can it be separated through chemical reactions? Can it be separated easily? NO YES NO YES Element Compound Homogeneous Mixture Heterogeneous Mixture
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Matter Pure Substances– can’t be separated by physical means (heating, filtering, sorting, etc.) NO Can it be separated by physical means? YES Pure Substances Mixtures Can it be separated through chemical reactions? Can it be separated easily? NO YES NO YES Element Compound Homogeneous Mixture Heterogeneous Mixture
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Mixtures – contains more than one substance
Matter NO Can it be separated by physical means? Mixtures – contains more than one substance YES Pure Substances Mixtures Can it be separated through chemical reactions? Can it be separated easily? NO YES NO YES Element Compound Homogeneous Mixture Heterogeneous Mixture
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Element – unique type of atom; on the Periodic Table
Matter NO Can it be separated by physical means? YES Pure Substances Mixtures Can it be separated through chemical reactions? Can it be separated easily? Element – unique type of atom; on the Periodic Table NO YES NO YES Element Compound Homogeneous Mixture Heterogeneous Mixture
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Matter NO Can it be separated by physical means? YES Pure Substances Mixtures Can it be separated through chemical reactions? Can it be separated easily? Compound – contains more than one element; atoms are chemically bonded together NO YES NO YES Element Compound Homogeneous Mixture Heterogeneous Mixture
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Homogeneous Mixture – is the same throughout; each sample is identical
Matter NO Can it be separated by physical means? YES Pure Substances Mixtures Can it be separated through chemical reactions? Can it be separated easily? Homogeneous Mixture – is the same throughout; each sample is identical NO YES NO YES Element Compound Homogeneous Mixture Heterogeneous Mixture
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Matter NO Can it be separated by physical means? YES Pure Substances Mixtures Can it be separated through chemical reactions? Can it be separated easily? Heterogeneous Mixture – is not the same throughout; samples are different NO YES NO YES Element Compound Homogeneous Mixture Heterogeneous Mixture
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Practice Classifying Put the following objects in the appropriate category: Element Compound Homogeneous Heterogeneous Mixture Mixture Oreos Root Beer Baking Soda (NaHCO3) Lithium (Li) Hydrogen (H2) Raisin Bran Hydrochloric Acid (HCl) Detergent Gold (Au) Formaldehyde (CH2O) Gatorade Your Body
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Practice Classifying-Answers
Put the following objects in the appropriate category: Element Compound Homogeneous Heterogeneous Mixture Mixture Lithium (Li) Baking Soda (NaHCO3) Root Beer Oreos Hydrogen (H2) Detergent Raisin Bran Hydrochloric Acid (HCl) Gold (Au) Gatorade Your Body Formaldehyde (CH2O)
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