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Composition of Matter
Transcript of Composition of Matter
Mixtures made of different materials that CANNOT be easily distinguished. (Blended Evenly)
Example: Vinegar (Acetic acid/Water)
Solution: A homogeneous mixture of particles so small that they will never settle to the bottom of the container.
Pure substance in which the atoms of two or more elements are combined in a fixed proportion.
Made of Molecules (2 or more atoms bonded together)
Examples: Water, Salt, Carbon Dioxide.
Anything that has mass and takes up space
Can be either pure or a mixture.
You here. You have mass. You take up space. You matter!
Have fixed compositions
Made of ONLY be an element or a compound!
Pure substance made of all the same atoms
About 90 elements found in nature
About 20 others are man made
Examples: Copper, Carbon, Oxygen`
Made of two or more substances that can be easily separated by physical means.
Not always equal proportions.
Mixtures made of different materials that can be easily distinguished.
Examples: Shirts (Cotton and Polyester blend)
Cheese, Granite, Italian Salad Dressing
Like heterogeneous mixture: Contains mixture of different materials
Like solution: Particles not heavy enough to separate out.
Examples: Milk (Fat, Proteins, Water)
Blood: cells, plasma
Heterogeneous mixture containing a liquid in which particles eventually settle.
Example: Muddy Water
Tyndall Effect: Colloids scatter light as it passes through.
I will be able to identify whether a substance is a mixture or a pure substance.
I can describe the difference between a heterogeneous and homogeneous mixture.