Question

give the systematic names of these compounds. spelling counts.
cui(s):
fe₂o₃(s):
cof₂(s):
feo(s):

Explanation:

For $\ce{CuI(s)}$:

Step1: Identify ions

$\ce{Cu+}$ (copper(I) ion) and $\ce{I-}$ (iodide ion).

Step2: Name the compound

Combine the names: copper(I) iodide.

For $\ce{Fe2O3(s)}$:

Step1: Identify ions

$\ce{Fe^3+}$ (iron(III) ion) and $\ce{O^2-}$ (oxide ion).

Step2: Name the compound

Combine the names: iron(III) oxide.

For $\ce{CoF2(s)}$:

Step1: Identify ions

$\ce{Co^2+}$ (cobalt(II) ion) and $\ce{F-}$ (fluoride ion).

Step2: Name the compound

Combine the names: cobalt(II) fluoride.

For $\ce{FeO(s)}$:

Answer:

s:

• $\ce{CuI(s)}$: copper(I) iodide
• $\ce{Fe2O3(s)}$: iron(III) oxide
• $\ce{CoF2(s)}$: cobalt(II) fluoride
• $\ce{FeO(s)}$: iron(II) oxide