Question

fill in the systematic names of the following chemical compounds.
note: for compounds containing hydrogen, you may give the common name instead.

molecular formula	name of compound
so₃
so₂
sio₂
h₂o

Explanation:

To solve this, we name each molecular compound using systematic naming rules (prefixes for molecular compounds):

For $\boldsymbol{\ce{SiO}}$:

• Contains silicon (Si) and oxygen (O). Prefix for 1 Si: "mono-" (but mono- is often omitted for the first element), prefix for 1 O: "mono-". So name: Silicon monoxide

For $\boldsymbol{\ce{SO3}}$:

• Contains sulfur (S) and oxygen (O). Prefix for 1 S: (no prefix), prefix for 3 O: "tri-". So name: Sulfur trioxide

For $\boldsymbol{\ce{SO2}}$:

• Contains sulfur (S) and oxygen (O). Prefix for 1 S: (no prefix), prefix for 2 O: "di-". So name: Sulfur dioxide

For $\boldsymbol{\ce{SiO2}}$:

• Contains silicon (Si) and oxygen (O). Prefix for 1 Si: (no prefix), prefix for 2 O: "di-". So name: Silicon dioxide

For $\boldsymbol{\ce{H2O}}$:

• Common name is water; systematic name: Dihydrogen monoxide (or simply "water" as a common name is acceptable here).

Filling the Table:

Molecular Formula	Name of Compound
$\ce{SO3}$	Sulfur trioxide
$\ce{SO2}$	Sulfur dioxide
$\ce{SiO2}$	Silicon dioxide
$\ce{H2O}$	Water (or Dihydrogen monoxide)

(Note: For $\ce{H2O}$, "water" is the widely accepted common name, while "dihydrogen monoxide" is the systematic name.)

Answer:

To solve this, we name each molecular compound using systematic naming rules (prefixes for molecular compounds):

For $\boldsymbol{\ce{SiO}}$:

• Contains silicon (Si) and oxygen (O). Prefix for 1 Si: "mono-" (but mono- is often omitted for the first element), prefix for 1 O: "mono-". So name: Silicon monoxide

For $\boldsymbol{\ce{SO3}}$:

• Contains sulfur (S) and oxygen (O). Prefix for 1 S: (no prefix), prefix for 3 O: "tri-". So name: Sulfur trioxide

For $\boldsymbol{\ce{SO2}}$:

• Contains sulfur (S) and oxygen (O). Prefix for 1 S: (no prefix), prefix for 2 O: "di-". So name: Sulfur dioxide

For $\boldsymbol{\ce{SiO2}}$:

• Contains silicon (Si) and oxygen (O). Prefix for 1 Si: (no prefix), prefix for 2 O: "di-". So name: Silicon dioxide

For $\boldsymbol{\ce{H2O}}$:

• Common name is water; systematic name: Dihydrogen monoxide (or simply "water" as a common name is acceptable here).

Filling the Table:

Molecular Formula	Name of Compound
$\ce{SO3}$	Sulfur trioxide
$\ce{SO2}$	Sulfur dioxide
$\ce{SiO2}$	Silicon dioxide
$\ce{H2O}$	Water (or Dihydrogen monoxide)

(Note: For $\ce{H2O}$, "water" is the widely accepted common name, while "dihydrogen monoxide" is the systematic name.)