Chemistry Naming compounds
What suffix ends the names of all binary molecular compunds?
"ide"
What suffixes are used to name most polyatomic anions?
"ite" or "ate"
Give the expected charge of cation Sr.
+2
Give the expected charge on the ions of elements in 3A
+3
Give the expected charge of ion of elements in 7A
-1
Identify compound as acid or base: HClO4
Acid.
what is the only Group 3A metal?
Aluminum
Polyanion acid
Anion ends in "ate" The suffix or end of the name ends in "ic". Sulfuric acid.
Write the formula for the compound formed by Ba+2 and S-2
BaS
Identify LiOH as acid or base.
Base
Identify compound as acid or base: KOH
Base.
KBr is ? ionic compound
Binary
Sodium Nitride Na3N is what type of ionic compound?
Binary
Write the formula for the compound chromium(III)nitrate.
Cr(NO2)3
Write the symbol for chromate ion.
CrO4 -2
What are the charges of the two copper ions?
Cu+ and Cu+2. OR Cu(I) ion and Cu(II) ion.
Write the formula for the compound formed by Cu=2 and I-1
CuI2
How do you determine the charge of a transition metal cation from the formula of an ionic compound containing that cation?
Determine the charge of the anion the work backwards to determine the charge of the transition metal needed to give a net zero charge,
Write the formula for iron(III) hydroxide.
Fe(OH)3
Write the formula for carbonic acid.
H2CO3
Write the formula for sulfurous acid.
H2SO3
Write the formula for sulfuric acid.
H2SO4
What is the formula for hydrogen sulfite polyatomic ion?
HSO3-
Name this acid:HCN
Hydrocyanic acid
What element usually appears i the formula of an acid?
Hydrogen
How do you determine the charge of a Group A non-metal?
It is determinied by subtracting 8 from the group number. Example: Cl- chloride ion is in Group 7A; therefore 7-8= -1
Write the symbol for potassium and state whether it is an anion or cation.
K+ is a cation. It is called the potassium ion
Write the formula for lithium hydrogen sulfate.
LiHSO4
How does a polyatomic atom differ from a monoatomic ion?
Monoatomic ion is a single atom while the polyatomic atom consists of more than one atom.
What is the formula for Sodium Iodide
NaI
Name acid with anion ending in "ide"
Name begins with hydro and ends with "ic".
Name this acid: HNO3.
Nitric acid
Name this acid:HNO2.
Nitrous acid
Write the symbol for oxygen and state whether it is an anion or cation.
O2- anion. It is known as oxide anion
What ion usually appears in the formula of a base?
OH or hydroxide.
How do you name a binary compound?
Place the name of the cation first, followed by the anion name. Exampe: NaBr is sodium bromide.
Name ion and determine if anion or cation:selenium
Selenide ion; anion
Write the symbol for tin(two electrons lost) and state whether it is a cation or anion.
Sn2+ cation. It is named TIn(II)ion.
What is the formula for stannous chloride?
SnCl2
How do you name an anion?
Start with the stem of the element name and end in "ide"
Name the following ion: SO4
Sulfate
What does the suffix "ite" or "ate indicate?
That the compound contains a polyatomic anion that included oxygen.Example Sulfate SO4-2 or sulfite SO3 -2
How do you determine the charge of the cations of transitional metals?
The charges must be determined from the amount of electrons lost. For example Fe2+ (two electrons lost).
What do the prefixes in the name of a binary molecular compound tell you about the composition of the compound?
The subscript of each element in the compound.Example: dinitrogen tetroxide or N2O4.
What happens when metals in Groups 1A,2A and 3A lose electrons?
They form cations with positive charges equal to their group number. Example: Group 1 A loses one electron to give +1 charge, 2A loses 2 electrons to give +2 charge.
When are parenthesis used in a formula containing a polyatomic ion?
When the compound contains more than one polyatomic ion.
What is the net ionic charge of every ionic compound?
Zero
binary ionic compound
a compound composed of the ions of one metal element and ions of on non-metal element, joined by ionic bonds
anion
a negatively charged ion
ternary acid
an acid composed of hydrogen and usually two other elements; the second and third elements forming a polyatomic ion. Acid with anion ending in "ite" No hydro prefix. Nitrous acid. Name ends in "ous"
binary acid
an acid that contains only two different elements: hydrogen and one of the more electronegative elements Hydrochloric acid. Anion ending in "ide". Has Hydro prefix. Name ends in "ic".
Name ion and determine if anion or cation;barium.
barium ion; cation.
Acid
compound that forms hydrogen ions in solution
Base
compound that produces hydroxide ions (OH+) in solution
Monatomic ions
consist of a single atom with a positive or negative charge resulting from the loss or gain of one or more valence electrons.
Molecular compund prefix:tetra
four ions present
Polyatomic ions
ions composed of more than one atom
cations
ions that carry a positive charge and include sodium (Na+), potassium (K+), calcium (Ca++), and magnesium (Mg++)
law of multiple proportions
law stating that when two elements can combine to form more than one compound the amounts of one of them that combines with a fixed amount of the other will exhibit a simple multiple relation
What is the name of the anion N3-?
nitride ion
Molecular compound prefix:mono
one ion present
What is the name of P3- ion?
phosphide ion
Law of definite proportion
the fact that a chemical compound contains the same elementes in exactly the same proportions by mass regardless of the size of the sample or sourceof the compound
How many electrons were lost or gained to form Fe3+?
three electrons were lost
How many electron were lost or gained to form O2-?
two electrons were gained
