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Science Vocab

------- BY ALEX MUFFLER ------- Dethloff 6th Period

Law of Conservation of Mass States that mass is neither created nor destroyed in any ordinary chemical reaction.
Physical Change Changes affecting the form of a substance, but do not change the chemical composition.
Chemical Change When a substance combines with another to form a new substance.
Element A substance that cannot be broken down by chemical means.
Chemical Formula A representation of a substance using the symbols of the elements.
Element (Diatomic) Molecule Elements that are found with two atoms that are bonded together.
Compound Molecule Electrically neutral group of two or more atoms held together by chemical bonds.
Chemical Equation Written form of a chemical reaction. Reactant is on the left and product is on the right.
Chemical Reaction Process that involves rearrangement of the molecular or ionic structure of a substance.
Reactant A substance that takes part in and undergoes change during a reaction.
Product A substance that is formed as the result of a chemical reaction.
Coefficiant A numerical measure of a property that is constant under specified conditions.
Subscript A letter, figure, or symbol written below the line.
Ionic Compound A chemical compound in which ions are held together in a structure by ionic bonds.
Covalent Compound A form of chemical bonding by the sharing of pairs of electrons between atoms.
Metallic Compound A compound that contains one or more metal elements.
Synthesis Making a complex substance by combining chemicals, especially with chemical reactions.
Decomposition The separation of a substance into simpler substances or basic elements.
Single Replacement A chemical reaction when an element or ion moves out of one compound and into another.
Double Replacement A chemical process involving the exchange of bonds between two reacting chemicals.
Created by: m0708018