Question

1. write the names for the following compounds.

(a) cf₄
(b) nh₃
(c) pbr₃
(d) o₃
(e) f₂ (gas)
(f) cs₂
(g) n₂o₄
(h) h₂o₂
(i) co
(j) sic
(k) p
(l) cl
(m)
(n)
(o)
(p)
(q)
(r)

Explanation:

• For binary covalent compounds (non - metal + non - metal), we use prefixes to indicate the number of each atom. The prefixes are: mono - (1, but usually omitted for the first element), di - (2), tri - (3), tetra - (4), penta - (5) etc.
• Some compounds have common names. For example, \(NH_3\) is ammonia.
• \(O_3\) is ozone (a common name for the allotrope of oxygen).
• \(F_2\) is fluorine gas (the elemental form of fluorine in the gas state).
• \(CO\) is carbon monoxide (using the mono - prefix for the single oxygen atom).
• \(SiC\) is silicon carbide (no prefixes as the ratio is 1:1 and it's a well - known compound name).

Answer:

(a) Carbon tetrafluoride
(b) Ammonia
(c) Phosphorus tribromide
(d) Ozone
(e) Fluorine gas
(f) Carbon disulfide
(g) Dinitrogen tetroxide
(h) Hydrogen peroxide
(i) Carbon monoxide
(j) Silicon carbide