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Chemistry Spring Fin

Chemistry Spring 2023 Final

TermDefinition
Orbital is a 3D region around the nucleus that indicates the probable location of an electron
Law of Conservation of Mass During a chemical reaction, mass cannot be created or destroyed. This is represented by a balance chemical reaction/equation.
Covalent Bond Sharing of electrons betwen atoms. non-metal + non-metal bonded. Uses PRefixes like tri, deca, and nona.
Ionic Bond The complete transfer of electrons from 1 atom to another. This is a metal + non-metal. On Transition metal you use Roman #s.
Products Substances formed during a chemical reaction
Reactants The starting substances of a chemcal reaction.
Molar Mass Is the mass in grams of 1 mol of a substance
Polyatomic ion composed of more than 1 ion such as NO
Molecular Weight The mass in grams of an atom, diatiomic, or a molecule.
Borh Model A discription of the structure of am atom. the electrons are in orbitals, and the protons and neutrons are in the center nucleus.
Avogadro's Number The number of particles in 1 mole. 6.03 X 10^23 particles (atoms or molecules)
Moles A standard of units for measuring large quantities of small entities like atoms or molecules.
Elements chemicals that cannot be broken down into smaller substances, found on the Periodic Table.
Molecules Atoms bonded to another atom. Can be covalent like HCl or ionic like NaCl.
Diatomic Composed of two of the same atoms.
Decomposition Compounds break down into simpler substances. AB -> A + B
Synthesis Two or more elements of compounds combine to make a more complex substance A + B -> AB
Single Replacement Occurs when one element replaces another one in a compounds. AB + C -> AC + B
Double Replacement Occurs when different atoms in two different compounds trade places. AB + CD -> AC + BD
Combustion A reaction of a carbon based compound with oxygen and products Carbon dioxide and water.
Created by: TeacherZ
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