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Mixtures of Matter
Classification of Matter
Substance Matter that has a uniform and unchanging composition
Mixture Combination of 2 or more pure substances They are physically mixed but, don’t react
Heterogeneous Does not blend smoothly and individual substances remain distinct Sand and water; orange juice; pizza
Homogeneous Mixture Constant composition throughout Homogenous Mixture - Is a single phase AKA - Solution Salt water
Two types of pure substances: Elements Compounds
Element: A pure substance that cannot be separated into simpler substances by chemical or physical means Found on periodic table 91 naturally occurring, the rest man made
Compound: Combination of two or more elements 1 Million compounds and 100,000 more found every year. Water; hydrogen peroxide
Has mass and volume (s, l, g) More than one type of matter Uniform throughout (solutions) Not uniform throughout One type of matter One type of atom Two or more elements
Separating Mixtures Reverse of Mixing Helps to understand matter Use physical processes used to separate solutions
Filtration -Technique that uses a porous barrier to separate a solid from a liquid. -Separate heterogeneous mixtures composed of solids and liquids.
Distillation -Separation technique based on differences on boiling points. -Separates a liquid from a liquid.
Crystallization formation of pure solid particles from a solution
Chromatography Separates on tendency of chemical to travel.
Separation of Pure Substances Requires chemical means
Ways to separate mixtures – Chapter 3: Matter & Its Properties
August 31. How can you separate mixtures? Separating is based on the difference in physical properties of the substances… Think about how you would separate.
Matter: Properties & Changes
MATTER: MIXTURES AND ELEMENTS AND COMPOUNDS You will distinguish between physical and chemical properties You will classify matter by composition.
Substances – matter that has a uniform and unchanging composition Atoms and Compounds like table salt, sugar, CO2 Physical properties can be observed.
Classification of Matter
Matter – Properties and Changes
Elements, Compounds, & Mixtures Objectives: 1. Explain the difference between an element and a compound. 2. Compare heterogeneous and homogeneous mixtures.
A Matter of Fact Mixtures, Elements and Compounds Adapted from: education.jlab.org/jsat/.../elements_compounds_mixtures.ppt.
Section 3.1 Properties of Matter
1. To learn about the composition of matter 2. To learn the difference between elements and compounds 3. To define the three states of matter.
HONORS CHEMISTRY August 23, Brain Teaser PLACE HOMEWORK ON YOUR DESK Classify each of the following as a physical or chemical property. a. Iron.
Matter Properties & Changes. __________ – anything that has mass and takes up space __________ - matter that has a uniform and unchanging composition…also.
Bellringer COMPLETE SENTENCES!!!! Define “substance”, and give an example.
Mixtures of Matter Section 3.3.
Classification of Matter. Matter Matter Anything that has mass and occupies space Anything that has mass and occupies space Pure substance Pure substance.
Section 3-3 Section 3.3 Mixtures of Matter Contrast mixtures and substances. Classify mixtures as homogeneous or heterogeneous. List and describe several.
Chem 11. Indications of a chemical reaction Energy absorbed or released Color change Gas produced Precipitate- solid that separates from solution Not.
Mixtures vs Pure Substances. What are these pictures of?
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