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Types of Matter

Types of Matter. Element Pure substance One kind of atom Smallest particle of matter that maintains chemical identity Represented by one or two letter symbol Example: Helium ( He ) “LIST OF ELEMENT YOU SHOULD KNOW”. Episode 202.

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Types of Matter

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  1. Types of Matter • Element • Pure substance • One kind of atom • Smallest particle of matter that maintains chemical identity • Represented by one or two letter symbol • Example: Helium (He) • “LIST OF ELEMENT YOU SHOULD KNOW” Episode 202

  2. http://www.youtube.com/watch?v=5PVCC_vp54I&feature=related • Compound • Two or more elements chemically combined (bonded) • Represented by chemical formula • Example: water (H2O) • H2O decomposes into hydrogen gas and oxygen gas • Combine in same proportion • H2O always contains 2 atoms of hydrogen and 1 atom of oxygen Episode 202

  3. Mixture • Two or more substances physically combined • Separated by physical means • Do not combine in same proportions • Heterogeneous mixture • Not uniform in composition • Homogeneous mixture (solution) • Uniform compostion • Alloy • Solution of two or more metals • Pure substances (elements and compounds) are homogeneous Episode 202

  4. Hydrogen peroxide • Carbon dioxide • Pizza • Salad dressing • Rust • Apple juice E C • Carbon • Carbon monoxide • Steel • Calcium • Lead • Milk C C S HE HE E C E S HE Episode 202

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