Chemical Nomenclature and Formulas

Vocabulary flashcards covering the chemical naming, formulas, ion charges, and conventions for binary ionic compounds, polyatomic ionic compounds, and molecular compounds from pages 1 through 50 of the lecture notes.

Calcium Sulfide

An ionic compound composed of the metal calcium (group $2$, charge $+2$) and non-metal sulfide (group $6$, charge $-2$) in a $1:1$ ion ratio, giving the chemical formula $CaS$.

Potassium Bromide

An ionic compound composed of the metal potassium (group $1$, charge $+1$) and non-metal bromide (group $7$, charge $-1$) in a $1:1$ ion ratio, with the chemical formula $KBr$.

Iron (III) Sulfide

An ionic compound formed from iron with a $+3$ charge (using the Stock system) and sulfide from group $6$ with a $-2$ charge, existing in a $2:3$ ion ratio with the formula $Fe_2S_3$.

Magnesium Iodide

An ionic compound formed from group $2$ magnesium ($+2$ charge) and group $7$ iodide ($-1$ charge) in a $1:2$ ion ratio, yielding the formula $MgI_2$.

Lithium Fluoride

An ionic compound consisting of group $1$ lithium ($+1$ charge) and group $7$ fluoride ($-1$ charge) in a $1:1$ ion ratio, with the formula $LiF$.

Iron (III) Chloride

An ionic compound consisting of iron ($+3$ charge using the Stock system) and group $7$ chloride ($-1$ charge) in a $1:3$ ion ratio, resulting in the chemical formula $FeCl_3$.

Zinc Phosphate

A compound containing zinc (a transition metal that only forms a $+2$ ion) and the polyatomic ion phosphate ($PO_4^{3-}$) in a $3:2$ ratio, written as $Zn_3(PO_4)_2$ with parentheses around the phosphate.

Ammonium Nitrate

An ionic compound made of two polyatomic ions: the polyatomic cation ammonium ($NH_4^+$ with a $+1$ charge) and the polyatomic anion nitrate ($NO_3^-$ with a $-1$ charge) in a $1:1$ ratio, written as $NH_4NO_3$.

Aluminum Hydroxide

A compound composed of group $3$ aluminum ($+3$ charge) and the polyatomic ion hydroxide ($OH^-$ with a $-1$ charge) in a $1:3$ ratio, written as $Al(OH)_3$ using parentheses.

Copper(II) Acetate

A compound containing copper ($+2$ charge using the Stock system) and the polyatomic ion acetate ($-1$ charge) in a $1:2$ ratio, written as $Cu(H_3CCOO)_2$.

Lead(II) Sulfate

A compound formed from lead ($+2$ charge via the Stock system) and the polyatomic ion sulfate ($SO_4^{2-}$ with a $-2$ charge) in a $1:1$ ratio, with the formula $PbSO_4$.

Dihydrogen Monosulfide

A molecular compound named using molecular convention because it contains two non-metals, consisting of $2$ hydrogen atoms and $1$ sulfur atom, with the formula $H_2S$.

Calcium Phosphide

An ionic compound composed of group $2$ calcium ($+2$ charge) and group $5$ phosphide ($-3$ charge) combining in a $3:2$ ion ratio, with the formula $Ca_3P_2$.

Iron(III) Oxide

An ionic compound composed of iron ($+3$ charge via the Stock system) and group $6$ oxide ($-2$ charge) in a $2:3$ ion ratio, having the formula $Fe_2O_3$.

Ammonium Phosphate

A compound composed of the polyatomic cation ammonium ($NH_4^+$ with a $+1$ charge) and the polyatomic ion phosphate ($PO_4^{3-}$) in a $1:3$ ratio, written as $(NH_4)_3PO_4$.

Sodium Carbonate

An ionic compound of group $1$ sodium ($+1$ charge) and the polyatomic ion carbonate ($CO_3^{2-}$ with a $-2$ charge) combined in a $2:1$ ratio, yielding $Na_2CO_3$.

Tetrahydrogen Dinitride

A molecular compound consisting of $4$ hydrogen atoms and $2$ nitrogen atoms with the formula $H_4N_2$, also commonly known as hydrazine.

Magnesium Nitrate

A compound of group $2$ magnesium ($+2$ charge) and the polyatomic ion nitrate ($NO_3^-$ with a $-1$ charge) in a $1:2$ ratio, written as $Mg(NO_3)_2$.

Copper(I) Sulfate

A compound consisting of copper with a $+1$ charge (using the Stock system) and the polyatomic ion sulfate ($SO_4^{2-}$ with a $-2$ charge) in a $2:1$ ratio, written as $Cu_2SO_4$.

Trihydrogen Mononitride

A molecular compound made of $3$ hydrogen atoms and $1$ nitrogen atom with the formula $H_3N$, commonly known as ammonia.

Potassium Chromate ($K_2CrO_4$)

A compound made of the group $1$ metal potassium ($+1$ charge) and the polyatomic ion chromate ($CrO_4^{2-}$ with a $-2$ charge).

Gold(III) Chloride ($AuCl_3$)

An ionic compound made of gold (using the Stock system with a $+3$ charge) and group $7$ chloride ($-1$ charge).

Dihydrogen Dioxide ($H_2O_2$)

A molecular compound named using molecular convention with two hydrogens and two oxygens, commonly known as hydrogen peroxide.

Beryllium Hydroxide ($Be(OH)_2$)

An ionic compound made of group $2$ beryllium ($+2$ charge) and the polyatomic anion hydroxide ($OH^-$ with a $-1$ charge) in a $2:1$ ion ratio.

Ammonium Nitride ($(NH_4)_3N$)

A compound composed of the polyatomic cation ammonium ($NH_4^+$ with a $+1$ charge) and group $5$ nitride ($-3$ charge).

Iron(III) Nitrate ($Fe(NO_3)_3$)

An ionic compound of iron ($+3$ charge from the Stock system) and the polyatomic anion nitrate ($-1$ charge) in a $1:3$ ion ratio.

Diphosphorus Pentoxide ($P_2O_5$)

A molecular compound consisting of $2$ phosphorus atoms (indicated by di-) and $5$ oxygen atoms (indicated by pent-).

Silver Nitrate ($AgNO_3$)

A compound composed of silver ($+1$ charge) and the polyatomic nitrate anion ($NO_3^-$ with a $-1$ charge) in a $1:1$ ratio.

Ammonium Sulfite ($(NH_4)_2SO3$)

A compound made of the polyatomic cation ammonium ($NH_4^+$ with a $+1$ charge) and the polyatomic sulfite ion ($SO_3^{2-}$ with a $-2$ charge) in a $2:1$ ratio.

Barium Sulfate ($BaSO_4$)

An ionic compound composed of group $2$ barium ($+2$ charge) and the polyatomic ion sulfate ($SO_4^{2-}$ with a $-2$ charge) in a $1:1$ ratio.

Lithium Acetate ($LiC_2H_3O_2$)

A compound composed of group $1$ lithium ($+1$ charge) and the polyatomic anion acetate ($-1$ charge) in a $1:1$ ratio.

Calcium Hydrogen Carbonate ($Ca(HCO_3)_2$)

A compound composed of group $2$ calcium ($+2$ charge) and the polyatomic anion hydrogen carbonate ($-1$ charge, also called bicarbonate) in a $1:2$ ratio.

Potassium Chloride ($KCl$)

An ionic compound composed of group $1$ potassium ($+1$ charge) and group $7$ chloride ($-1$ charge) in a $1:1$ ratio.

Magnesium Chloride ($MgCl_2$)

An ionic compound made of group $2$ magnesium ($+2$ charge) and group $7$ chloride ($-1$ charge) in a $1:2$ ratio.

Stock System Naming of $Fe_2O_3$

The process of determining iron's charge as $+3$ (iron(III)) from the number of group $6$ oxide anions ($-2$ charge), yielding the name iron(III) oxide.

Lithium Bromide ($LiBr$)

An ionic compound made of group $1$ lithium ($+1$ charge) and group $7$ bromide ($-1$ charge) in a $1:1$ ratio.

Mercury(II) Chloride ($HgCl_2$)

A compound of mercury(II) ($+2$ charge via the Stock system) and group $7$ chloride ($-1$ charge) in a $1:2$ ratio.

Carbon Tetrabromide ($CBr_4$)

A molecular compound where mono- is dropped for the first element ($1$ carbon) and tetra- is applied to $4$ bromines.

Sulfur Hexafluoride ($SF_6$)

A molecular compound written in the notes as Sulfur Hexaflouride, where mono- is omitted for the single sulfur and hexa- is used for $6$ fluorines.

Tetrasulfur Tetraphosphide ($S_4P_4$)

A molecular compound composed of $4$ sulfur atoms and $4$ phosphorus atoms, using the tetra- prefix for both elements.

Iron(III) Phosphate ($FePO_4$)

A compound of iron ($+3$ charge derived from the phosphate ion) and the polyatomic ion phosphate ($PO_4^{3-}$) in a $1:1$ ratio.

Calcium Nitrite ($Ca(NO_2)_2$)

A compound of group $2$ calcium ($+2$ charge) and the polyatomic nitrite anion ($NO_2^-$ with a $-1$ charge) in a $1:2$ ratio.

Iodine Tetrafluoride ($IF_4$)

A molecular compound written in the notes as Iodine tetraflouride, where mono- is dropped for the single iodine and tetra- denotes $4$ fluorines.

Tin(IV) Carbonate ($Sn(CO_3)_2$)

A compound containing tin with a $+4$ charge from the Stock system (known from the two carbonates) and the polyatomic carbonate ion.

Magnesium Bromide ($MgBr_2$)

An ionic compound consisting of group $2$ magnesium ($+2$ charge) and group $7$ bromide ($-1$ charge) in a $1:2$ ratio.

Sodium Acetate ($NaCH_3CO_2$)

A compound of group $1$ sodium ($+1$ charge) and the polyatomic anion acetate ($-1$ charge) in a $1:1$ ratio.

Silver Chloride ($AgCl$)

An ionic compound made of silver metal ($+1$ charge) and group $7$ chloride ($-1$ charge) in a $1:1$ ratio.

Phosphorus Pentachloride ($PCl_5$)

A molecular compound written in the transcript as Phosphorus pentachlouride, where mono- is dropped for the single phosphorus and penta- denotes $5$ chlorines.

Dichlorine Heptoxide ($Cl_2O_7$)

A molecular compound consisting of $2$ chlorines (di-) and $7$ oxygens (hepta-).

Dihydrogen Monoxide ($H_2O$)

A molecular compound consisting of $2$ hydrogens (di-) and $1$ oxygen (mono-), more commonly known as water.