Naming Ionic Compounds and Oxyanions

Mrs. Bason introduces polyatomic ions, explaining their structure and charge. She details how to name compounds containing these ions, focusing on oxyanions and their systematic naming based on oxygen content. Examples illustrate naming conventions, including the use of Roman numerals for metals with multiple charges. The video also covers writing formulas for compounds, emphasizing the importance of maintaining polyatomic ion subscripts and using parentheses when necessary.

What is a polyatomic ion?

• A neutral group of atoms

• A group of nonmetals with a charge

• A group of metals with a charge

• A single atom with a charge

How are oxyanions with fewer oxygen atoms named?

• With the suffix 'ite'

• With the suffix 'ate'

• With the prefix 'hypo'

• With the prefix 'per'

What is the name of NO3-?

• Nitrogen

• Nitrate

• Nitrite

• Nitride

When naming an ionic compound, which part is named first?

• The cation

• The polyatomic ion

• The anion

• The element with the highest atomic number

What is the correct name for Fe(NO3)3?

• Ferric nitrate

• Iron(II) nitrate

• Iron(III) nitrate

• Iron nitrate

How do you determine the charge of a cation in a compound?

• By using a Roman numeral

• By using the polyatomic ion chart

• By guessing based on the element's position

• By looking at the periodic table

What is the formula for a compound formed by potassium and sulfate?

• KSO4

• K2SO4

• K2S

• KSO3

Why are parentheses used in chemical formulas with polyatomic ions?

• To separate the cation and anion

• To show multiple polyatomic ions

• To denote a neutral compound

• To indicate a single atom

What is the name of NH4Cl?

• Ammonium hypochlorite

• Ammonium chlorate

• Ammonium chloride

• Ammonium perchlorate

Which of the following is a correct name for NaHCO3?

• Sodium bicarbonate

• Sodium carbonate

• Sodium sulfate

• Sodium hydroxide