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Matter Test 1

QuestionAnswer
anything that takes up space and has mass Matter
Solid, Liquid, Gas, Volume, Mass Properties of Matter
Properties of substance that never change and are used to identify unknown matter Characteristic Properties
Changes the form of the substance, but does not alter its identity Example: tear a sheet of paper, crush a can, boiling away water into water vapor, water freezes into ice Physical Changes
When a substance undergoes a chemical change into a different substance, with different properties Examples: burn wood, carmelized sugar, water into hydrogen/oxygen Chemical Changes
The principle that the total amount of matter, can not be created nor destroyed during any chemical or physical change Law of Conservation of Mass
Consisting of two or more substances, that are not chemically combined Example: soft drinks, gas and water, oil and water, salt and water, powdered drinks Mixture
The best mixed possible substances (saltwater, sugar and water) Solution
Substances made of one kind of matter and has definite set of properties Example: sugar, salt, iron, aluminum, copper, oxygen Pure Substance
Pure substances that cannot be broken down into other substances Example: Peridodic Table of Elements, A little over 100 (116 elements), we use 30-40 in everyday life Element
Substances that are made of 2 or more elements chemically combined Example: Water (H2O), Salt (NaC1), Carbon Dioxide (CO2), Sugar (C12H22O11) Compound
The smallest particle of an element. (The thickness of a sheet of aluminum foil is made of 200,000 atoms Atom
A group of atoms joined together and act as one unit Example: O2H2O3 Molecule
A mixture of two or more substances that can be easily separated by common physical means Example: Oil and Water A mixture where the substances aren't easily distributed A mixture in which the ingredients are not uniformally dispersed Heterogeneous Mixture
A mixture that cannot be easily separated by common physical means Example: Saltwater A mixture that looks really "smooth" because everything is mixed together really well Homogeneous Mixture
Created by: barstadpc
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