Chemical Bonds
What indicates the number of atoms of the preceding element in a molecule?
K2S
Subscripts
What do the dots on the Lewis Dot Structure shells represent?
Valence Electrons
What do roman numeral represent?
Iron(III)
A Roman numeral is used to indicate an ion’s charge
Fe+3
Subscripts should always...
be simplified to their smallest ratios
What prefix and ending is added when naming Binary Acids?
Ex: Hydrochloric Acid
The prefix "hydro-" and the ending "-ic" are added
What are major differences between Ionic and Covalent compounds?
-Ionic bonds are made of a metal and nonmetal elements
-Covalent bonds are made of only nonmetal elements
-Electrons are transferred between valence shells of atoms in Ionic bonding
-Pairs of electrons are shared between nonmetal atoms
Draw the Lewis Dot Structure of CaCl2
[Ca]+2 2[Cl]-
What is the Stock System of Nomenclature used for?
The Stock System of Nomenclature distinguishes an ion's charge
True of False:
Naming a Chemical Formula with Transition Metals shares the same rule as naming ionic compounds.
True
What suffixes are added when naming Oxyacids?
"-ic" is added if the anion ends in "-ate"
"-ous" is added if the anion ends in "-ite"
Molecular compounds are named based on what?
mono- di-
tri- tetra-
Prefixes
What is the Octet Rule?
Chemical compounds tend to form so that each atom, by gaining, losing, or sharing electrons, has 8 electrons in its highest energy level
What is the name of C3Cl8 ?
Tricarbon Octachloride
What is the Chemical Formula for Carbon Tetraiodide?
CI4
What is the name for HF, HBr, and HClO2?
ClO2 = Chlorite
HF - Hydrofluoric Acid
HBr - Hydrobromic Acid
HClO2 - Chlorous Acid
What are Polyatomic ions?
Formula Name
NH4+ Ammonium
OH- Hydroxide
NO3- Nitrate
Polyatomic ions are ions which consist of more than one atom.
What are the exceptions to the Octet Rule?
Hydrogen and Boron
What happens to the ending of the anion when naming Ionic Compounds?
The ending of the anion is dropped and "-ide" is added to the first syllable
What is the Chemical Formula for Calcium Nitrite?
Ca(NO2)2
What are Binary Acids?
Acids that consist of two elements, usually hydrogen and a halogen
When does Metallic bonding occur?
Metallic bonding occurs between like atoms of a metal in the free state
Lewis Dot Structure is also known as?
Electron-dot notation
What is the name for Fe2(CrO4)3
Iron (III) Chromate
What is the formula for phosphorous acid?
H3PO3
What are Oxyacids?
Acids that contain hydrogen,oxygen, and a third element (usually nonmental)