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Classification of Matter

Chapter 2 From Modern Chemistry by HoltMatter and Change. (Elements, Properties of matter; changes; classifying substances)

Lisa Sunshine

on 23 January 2014

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Transcript of Classification of Matter

Extensive properties: depend on the amount of matter
- mass
- volume

Intensive properties depend on the type of matter
- density
- boiling point
- color
Matter and Change
a measure of the amount of matter that an object contains
a measure of the space occupied by a sample of matter
Separating Mixtures
An atom is smallest unit of matter which still has the same characteristics.
When two or more atoms combine together, they create molecules.
substances have fixed composition with all of the same propterties.
Heterogenous Mixture: Mixture is not uniform throughout.
Ex: Italian dressing or rocky Road ice cream.
Homogenous Mixture: Mixture of two or more elements or compounds that are uniform throughout. Also called a solution.
Ex: salt water or soda
A mixture is a blend of two or more types of matter. The matter still has it owns properties and identity.
Organization of Matter
Atoms are made up of Protons (positive charges), Electrons (negative charges), and Neutrons (Neutral charge)
When atoms and molecules combine together, they create substances.
These can arranged into elements or compounds.
Elements are a basic substance which cannot be simplified.
A compound is two or more different elements linked together chemically.
Elements are found on the Periodic Table
Matter can also form mixtures.
There are two basic types of mixtures:
With a heterogenous mixture, the compounds and/or elements are not evenly mixed throughout.
Compounds cannot be seperated except by chemical means and then the compound is something different.
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