Types of Matter Notes Vocabulary: heterogeneous mixture 2/22/2019 12:30 PM Types of Matter Notes Vocabulary: heterogeneous mixture homogeneous mixture chemistry solution matter pure substance solid representative particle liquid gas element symbol compound formula molecule/formula unit Law of Definite Composition mixture “No. 8”, Jackson Pollack, 1949 © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

What is chemistry? Chemistry is the study of matter. 2/22/2019 12:30 PM What is chemistry? Chemistry is the study of matter. Anything that has mass and takes up space. © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Categories of Matter Matter Pure Substances Mixtures We will initially look at two different classifications of matter, each of which has two sub-classifications. Matter Pure Substances Mixtures Homogeneous Mixture Heterogeneous Mixture Elements Compounds

Definition Time! Pure substance: a substance containing only one type of representative particle. Representative particle: the smallest part of a substance containing all the properties of the substance.

Element A pure substance made of ONLY ONE TYPE OF ATOM. Representative particle: the atom Found on the periodic table. Has a symbol (first letter is upper case and second letter, if any, is lower case.)

ALL elements are on the periodic table!! Cu Cl Cs

Compound A pure substance that is made from the atoms of two or more elements that are chemically combined. Has a formula containing the symbols of two or more elements. Follows the Law of Definite Composition. Representative particle: molecules or formula units. Components can only be chemically separated.

Definition Law of Definite Composition: Every compound has a fixed number of atoms of its component elements (e.g., water always has 2 hydrogen atoms and one oxygen atom in each molecule.)

Compounds are made of elements!! Compounds have a formula!! water rust sugar H2O Fe2O3 C12H22O11 Two elements Two elements Three elements

Mixture Two or more types of matter that are blended, but not chemically combined. Each substance in the mixture maintains its identity and properties. There is no representative particle for the mixture, only the individual components of the mixture. Components can be physically separated.

Mixtures No symbol or formula!

Heterogeneous Mixture Hetero: Different A mixture that is not uniform throughout on a particle level. Can not see through the chocolate milk, so particles are not uniform throughout, and therefore heterogeneous. Easy to see the different components so obviously it is heterogeneous.

Homogeneous Mixture Homo: Same A mixture which is uniform throughout on a particle level. Also called solutions White Gold: Tough one. You have to be told that is made of silver and gold mixed together (called an “alloy,” a mixture of metals). Homogeneous. Kool Aid: Can not see the components and clear, so homogeneous. Salt Water: Tough one. You have to be told that the water has salt in it. You can’t see the salt, so homogeneous.

Summary Element Compound Mixture Pure substance? yes no # of different types of atoms 1 More than 1 Representative particle atom molecule or formula unit none Shorthand symbol formula On periodic table? Can be separated by physical means? Can be separated by chemical means? Sample Model

Self Quiz Identify Which examples are solids, which are liquids, and which are gases? Which examples show a phase change? Which examples are elements, which are compounds, which are homogeneous mixtures, and which are heterogeneous mixtures?

Self Quiz Identify Which examples are solids, which are liquids, and which are gases? Which examples show a phase change? Which examples are elements, which are compounds, which are homogeneous mixtures, and which are heterogeneous mixtures?

Self Quiz Identify Which examples are solids, which are liquids, and which are gases? Which examples show a phase change? Which examples are elements, which are compounds, which are homogeneous mixtures, and which are heterogeneous mixtures?

Self Quiz Identify Which examples are solids, which are liquids, and which are gases? Which examples show a phase change? Which examples are elements, which are compounds, which are homogeneous mixtures, and which are heterogeneous mixtures?

Self Quiz Identify Which examples are solids, which are liquids, and which are gases? Which examples show a phase change? Which examples are elements, which are compounds, which are homogeneous mixtures, and which are heterogeneous mixtures?

Self Quiz Identify Which examples are solids, which are liquids, and which are gases? Which examples show a phase change? Which examples are elements, which are compounds, which are homogeneous mixtures, and which are heterogeneous mixtures?

Self Quiz Identify Which examples are solids, which are liquids, and which are gases? Which examples show a phase change? Which examples are elements, which are compounds, which are homogeneous mixtures, and which are heterogeneous mixtures?

Self Quiz Identify Which examples are solids, which are liquids, and which are gases? Which examples show a phase change? Which examples are elements, which are compounds, which are homogeneous mixtures, and which are heterogeneous mixtures?

Self Quiz Identify Which examples are solids, which are liquids, and which are gases? Which examples show a phase change? Which examples are elements, which are compounds, which are homogeneous mixtures, and which are heterogeneous mixtures?

Self Quiz Identify Which examples are solids, which are liquids, and which are gases? Which examples show a phase change? Which examples are elements, which are compounds, which are homogeneous mixtures, and which are heterogeneous mixtures?