Oxidation Numbers
In a stable, unreacted element, what is its oxidation number?
0
When naming binary covalent compounds, which element is written first?
The element with a higher metallic property.
Melting point of ionic substances?
high
What term describes a charged group of atoms bonded covalently?
Polyatomic Ions
What is the formula for magnesium chloride?
MgCl₂
The sum of oxidation numbers in a neutral compound must always equal what value?
0
For transition metals, what does the Roman numeral indicate?
The oxidation number of the metal
Conduction of ionic substances as a solid.
Does not conduct electricity as a solid.
Anion or Cation? Sulfur
anion
What is the name for P4Cl10 ?
tetraphosphorous Decachloride
When hydrogen is bonded to a metal in a metallic hydride, what is its oxidation number?
-1
Which system is used to name ionic compounds?
Metal, nonmetal-ide
Shape of ionic substances.
Crystal lattice
Which type of compounds often contain polyatomic ions?
Ionic Compounds
What is the formula for Aluminum oxide
Al2O3
Alkali metals (Group 1) have what oxidation number when in compounds?
1+
What prefix represents six atoms in a compound?
Hexa-
Types of elements in ionic substances.
metal and nonmetal
What distinguishes a polyatomic ion from a metallic ion?
polyatomic - more than one atom
Polyatomic - nonmetals
What is the formula for dinitrogen tetroxide?
N₂O₄
What is the oxidation number for Iron in FeO2?
The oxidation number for Iron is 4+
When should parentheses be used in a polyatomic ionic compound's formula?
When there is more than one of a polyatomic ion in the formula
Oxidation number for Ag2O
1+
Which of the following compounds would require the Roman numeral system for naming: NaCl, CuO, or CO₂?
CuO
What is the chemical name for K₂CO₃? (Carbonate)
Potassium carbonate