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Chemistry Fundamenta

Classification of Matter

TermDefinition
Acids Substances that donate protons or accept pairs of valence electrons. They taste sour and turn blue litmus paper red.
Bases Substances that accept protons or donate pairs of valence electrons. They taste bitter and feel slippery.
pH A scale used to specify the acidity or basicity of an aqueous solution. It ranges from 0 to 14, with 7 being neutral
Adhesion The attraction between different substances, such as water sticking to a glass surface.
Cohesion The attraction between molecules of the same substance, like water molecules sticking together.
Surface Tension The property of a liquid that allows it to resist an external force due to the cohesive nature of its molecules.
Capillary Action The ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity.
Chemical bond The force that holds atoms together in a substance
Compound A pure substance made of two or more different elements chemically bonded together.
Element A pure substance made of only one type of atom.
Heterogeneous mixture A mixture in which the different substances are not evenly mixed and can often be seen separately.
Homogeneous mixture A mixture that is evenly mixed throughout.
Mixture Two or more substances combined physically, but not chemically.
Pure substance Matter made of only one type of particle, such as an element or compound.
Solution A homogeneous mixture in which one substance dissolves evenly in another.
Brittle Easily broken or shattered when force is applied.
Conductivity The ability of a material to allow heat or electricity to pass through it.
Density The amount of mass packed into a given volume.
Ductility The ability of a material to be pulled or stretched into a wire.
Dull Having little or no shine or reflection.
Fluorescence The ability of a substance to absorb energy and give off visible light.
Luster The way a substance reflects light from its surface.
Magnetism The ability of a material to be attracted to a magnet or act like a magnet.
Malleability The ability of a material to be hammered or pressed into thin sheets without breaking.
Metal An element that is usually shiny, malleable, ductile, and a good conductor of heat and electricity.
Metalloid An element with properties of both metals and nonmetals.
Nonmetal An element that generally lacks the properties of metals and is usually a poor conductor.
Periodic table A chart that organizes elements according to their properties and atomic structure.
Physical property A characteristic of matter that can be observed or measured without changing the substance into a new substance.
Rare earth element A group of metallic elements with unique properties that are important in many technologies.
Created by: jamie.ivy
 

 



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