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Michael's Chem Vocab

Chemistry Vocabulary

Law of Conservation of Mass A law that states that matter can not be created or destroyed, only changed
Physical Change A change from one state (solid or liquid or gas) to another without a change in chemical composition.
Chemical Change Any process determined by the atomic and molecular composition and structure of the substances involved.
Element A substance that cannot be broken down by chemical means.
Chemical Formula A way of expressing information about the atoms that constitute a particular chemical compound.
Element (diatomic) molecule Diatomic molecules are molecules composed only of two atoms.
Compound Molecule A molecule with two or more elements
Chemical Equation A chemical equation is the symbolic representation of a chemical reaction
Chemical Reaction A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
Reactants The side of a chemical equation that is being combined
Products The result of the reactant
Coefficient The number that tells you how many molecules there are
Subscript The small number that tells you how many atoms are one specific element of a molecule
Ionic Compound A chemical compound in which ions are held together in a lattice structure by ionic bonds.
Covalent Compound A covalent bond is a form of chemical bonding that is characterized by the sharing of pairs of electrons between atoms
Metallic Compound A metallic compound is a compound that contains one or more metal elements.
Synthesis Chemical synthesis is purposeful execution of chemical reactions to get a product, or several products.
Decomposition Chemical decomposition, analysis or breakdown is the separation of a chemical compound into elements or simpler compounds.
Single Replacement A single-displacement reaction, also called single-replacement reaction, is a type of oxidation-reduction chemical reaction when an element or ion moves out of one compound and into another.
Double Replacement A double replacement reaction is a chemical reaction where two reactant ionic compounds exchange ions to form two new product compounds with the same ions.
Created by: l0306198



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