Naming Compounds

Naming Compounds

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Naming Acids

Three Rules

If the anion ends in...

• "ide" -use "hydro______ic acid"

• "ate" -use "________ic acid"

• "ite" -use "________ous acid"

If the anion is a single atom, it will always end in -ide.

...however, there are some polyatomic ions that end in -ide

Multiple Choice

What is the ending for the anion in this molecule: H₂S

• -ate

• -ide

• -ite

Multiple Choice

What naming structure would you use for H₂S since it ends in -ide?

• hydro____ic acid

• _____ic acid

• _____ous acid

If the anion ends in...

• "ide" -use "hydro______ic acid"

• "ate" -use "________ic acid"

• "ite" -use "________ous acid"

Multiple Choice

What is the ending for the anion in this molecule: H₂SO₄

• -ate

• -ide

• -ite

Multiple Choice

What naming structure would you use for H₂SO₄ since it ends in -ate?

• hydro____ic acid

• _____ic acid

• _____ous acid

If the anion ends in...

• "ide" -use "hydro______ic acid"

• "ate" -use "________ic acid"

• "ite" -use "________ous acid"

Multiple Choice

What is the ending for the anion in this molecule: H₂SO₃

• -ate

• -ide

• -ite

Multiple Choice

What naming structure would you use for H₂SO₃ since it ends in -ate?

• hydro____ic acid

• _____ic acid

• _____ous acid

Naming Molecular/Covalent Compounds

As simple as knowing a few prefixes

The subscripts correlate to a prefix

• 1- mono

• 2- di

• 3- tri

• 4- tetra

• 5- penta

The subscripts correlate to a prefix

• 6- hexa

• 7- hepta

• 8- octa

• 9- nona

• 10- deca

Fill in the Blanks

N₂F₄ is called

Fill in the Blanks

PF₅ is called

Naming Ionic Compounds

Pretty easy until you have a transition metal as the cation

For non-transition metals, here are the rules:

• The cation is called its name. Ex: Na⁺¹ is "sodium"

• If the anion is a single atom, use its name, minus the ending, replaced with "ide"

• If the anion is a polyatomic ion, use the name on the polyatomic ion sheet

Fill in the Blanks

What is the name of K₂O?

For transition metals (formula to name), here are the rules:

• Find out the total charge for the anion side

• Assume the cation side is the same magnitude (opposite charge)

• Divide by subscript of cation (if different than one)

• Whatever the charge is, put it as a Roman Numeral

Fill in the Blanks

What is the name of CuO? Don't forget the Roman Numeral!

For transition metals (name to formula), here are the rules:

• Whatever the Roman Numeral is, put it as the charge.

• Use the crossover method to get subscripts

Fill in the Blanks

What is the formula of Tin (IV) sulfide? Note: you will not be able to do a subscript, so just type the number and I will assume it is a subscript.