Polyatomic Ions
What is the formula of a hydroxide ion?
OH-
What is the name of the compound with the formula NaCl?
Sodium Chloride
What is the chemical formula for water?
H2O
What type of bond is formed when valence electrons are shared between two nonmetal atoms?
Covalent bond.
What is the typical charge of an alkali metal ion, such as sodium (Na), when it forms a compound?
+1
What ion is represented by the following formula: NO2-
Nitrite ion
What is the name of the covalent compound CO2?
Carbon Dioxide
What is the chemical formula for magnesium oxide?
What type of bond forms due to the electrostatic attraction between oppositely charged ions (typically a metal and a nonmetal)?
Ionic bond
What is the ionic charge of a sulfide ion
-2
What is the formula for a dichromate ion?
Cr2O7-2
What is the correct name for the ionic compound Fe2O3?
Iron (III) oxide
What is the chemical formula for calcium chloride?
CaCl2
What specific type of covalent bond features an unequal sharing of electrons due to a difference in electronegativity, resulting in partial positive and negative charges?
Polar covalent bond.
What is the only polyatomic ion with a positive charge?
Ammonium (NH4+)
What ion is represented by the following formula: MnO4-
Permanganate ion
What compound is named Lead II Dichromate?
PbCr2O7
What is the chemical formula for ammonium phosphate?
(NH4)3PO4
What type of bonding is characterized by a "sea of mobile electrons" shared among metal cations?
Metallic bond.
What is the overall charge of any neutral ionic compound?
Zero (0)
What ion is represented by the following formula: C2H3O2-
Name the following compound: Hg(NO3)2
Mercury (II) nitrate
Write the chemical formula for Iron(III) carbonate.
Fe2(CO3)3
Based on electronegativity differences, what specific type of bond forms between two atoms of the same nonmetal element, such as in O2 or Cl2 where electrons are shared completely equally?
Nonpolar covalent bond.
Which polyatomic ion has the largest charge?
Phosphate ion (PO4-3)