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Matter and it’s ChangesBy: Mitchell Hanna, Chris Castro, Joe Connor, Eric Jensen, Ryan McDonnell
In this slide show we will explain
• Elements• Compounds• Heterogeneous and Homogeneous
mixtures• Physical and Chemical Properties • Physical and Chemical Changes
Elements
• Elements are forms of matter on the Earth that have a specific location on the Periodic Table of Elements
• Elements can be solids, liquids, and gasses
• Elements can either be natural occurring or man made
• Elements are placed on the Periodic Table shown behind this slide
Compounds • A compound is a substance containing two or more
different elements bonded together into a fixed mass ratio
• Compounds are different from mixtures because a mixture can be made by only mechanical means, Compounds must be formed by chemical reactions
• All compounds can exist as solids, liquids, and gases • Compounds are named differently then elements here is
a link to a site that shows you how to name them • http://www.woodrow.org/teachers/chemistry/links/
chem1/NamingComp.html
Heterogeneous and Homogeneous mixtures
• There are two types of Mixtures and they are Heterogeneous and Homogeneous
• A heterogeneous mixture is a mixture where there is a change in it’s state of matter
• A homogeneous mixture is a mixture where it remains uniform throughout the entire mixture
Physical and Chemical Properties
• Physical properties are properties that do not change the chemical nature of the matter
• Some examples are freezing point, color, smell, melting point, and so on
• Chemical Properties are properties that will change the chemical nature of the matter
• Some examples are heat of combustion, reactivity with water, and electromotive force
Physical and Chemical Changes
• A physical change is where the change dose not change the chemical make up of the structure
• A major example is the change from solid to liquid to water to steam
• A chemical change is where the chemical make up of the substance is changed and energy is either absorbed or given off
• Some examples are burring, oxidation, and photosynthesis