Naming and Formulas of Compounds

This lesson covers naming and formula writing for binary compounds. It explains how to identify binary compounds, understand ions, and differentiate between cations and anions. The video provides steps for naming ions and binary compounds, and demonstrates how to construct chemical formulas ensuring compounds are neutral.

What is the primary objective of lesson seven?

• To study the periodic table

• To identify and construct chemical formulas for binary compounds

• To learn about organic compounds

• To understand the history of chemistry

What is a cation?

• An atom with a positive charge

• An atom with no charge

• An atom with a negative charge

• A neutral atom

How do you name a negative ion?

• Use the full name of the element

• Add 'ion' to the element name

• Use the first syllable and add 'ide'

• Use the last syllable and add 'ate'

What is the name of the compound formed by lithium and fluorine?

• Lithium fluoride

• Lithium fluorine

• Lithium fluorate

• Lithium fluorite

How do you determine the name of a binary compound?

• By using the electron configuration

• By combining the full name of the cation and the modified name of the anion

• By using the atomic number

• By using the atomic mass

What must the sum of charges in a compound equal?

• Negative one

• Zero

• Two

• One

What is the chemical formula for a compound containing sodium and chlorine?

• Na2Cl2

• Na2Cl

• NaCl

• NaCl2

How do you write the chemical formula for a compound with barium and oxygen?

• BaO2

• Ba2O2

• BaO

• Ba2O

What happens if the charges in a compound do not equal zero?

• The compound is stable

• The compound is non-reactive

• Additional ions are added to balance the charges

• The compound is neutral

What is the chemical formula for a compound containing lithium and sulfur?

• Li2S

• LiS

• LiS2

• Li2S2