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Env. Science Vocab.

ENV.2: Matter and Its Interactions (Fundamental Chemistry)

TermDefinition
Matter Anything that has mass and takes up space.
Atom The smallest unit of an element that retains the properties of that element.
Element A pure substance made up of only one type of atom.
Compound A substance made up of two or more different elements chemically combined.
Mixture A combination of two or more substances that are not chemically combined.
Chemical reaction A process that changes one or more substances into different substances.
Energy The ability to do work.
Law of conservation of mass The total mass of reactants in a chemical reaction equals the total mass of products.
Law of conservation of energy Energy cannot be created or destroyed, only transformed.
Atomic Number Tells how many protons and electrons are in an element
Atomic Mass Tell the total mass of an atom. Tell the total number of protons + neutrons in the nucleus of the atom.
Created by: ayden01
 

 



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