Chem Final Flashcards
Polar Covalent
two elements on right side (both nonmetals) of periodic table
Double Bond
a covalent bond that is formed when two atoms share four electrons
Ionic Bond
the bond that forms between a cation and an anion that is created by the attraction between oppositely charged particles
Acid
starts with an H
Ionic
cation(+) and anion(-) (cation has to be first)
Binary Molecule
2 non-metals together
Precipitation reaction
a reaction in which a solid is formed from two or more soluble reactants
Oxidation-reduction reaction
a reaction in which electrons are transferred from one chemical species to another
Binary Compound
a compound that contains only two different elements
Pure covalent bond
a bond produced when electrons are shared equally between two atoms
Atomic Size
Increases left to right on periodic table
Ionization Energy
Increases left to right on periodic table
Metallic Character
Increases right to left
Molecular formula
show the number of each type of atom in molecule
Ex:N2O4
Precision
a measure of how close repeated measurements are to each other
Accuracy
a measure of how close a measurement is to the actual value
Exceptions to Octet Rule
-Ions or molecules with an odd number of valence electrons.
-Ions or molecules that are stable with less than an octet.
-Ions or molecules with more than eight valence electrons (an expanded octet)
Precipitation reaction
a reaction in which a solid is formed from two or more soluble reactants
Oxidation-reduction reaction
a reaction in which electrons are transferred from one chemical species to another
Neutralization reaction
-the reactants are an acid and a base, the products are often a salt and water, and neither reactant is the water itself
- Acid + base -> salt + water
