Binary Ionic Compounds and Formulas

The video tutorial explains how to write formulas for binary ionic compounds, which are neutral combinations of cations and anions. It covers the importance of charge balance and provides examples, including potassium bromide, magnesium chloride, and aluminum oxide. The tutorial also discusses naming ionic compounds, emphasizing the need to identify transition metals and use Roman numerals to indicate their charges.

What is a binary ionic compound?

• A compound with two anions

• A compound with two cations

• A compound with three elements

• A neutral compound with one cation and one anion

In a binary ionic compound, which ion is written first in the formula?

• Anion

• Cation

• Non-metal

• Noble gas

How do you balance charges when writing the formula for magnesium chloride?

• Use two magnesiums and one chloride

• Use one magnesium and two chlorides

• Use two magnesiums and two chlorides

• Use one magnesium and one chloride

What is the formula for potassium bromide?

• KBr

• K2Br

• KBr2

• K2Br2

When writing the formula for aluminum oxide, how many aluminum ions are needed to balance the charges?

• Four

• Three

• Two

• One

What is the correct formula for aluminum oxide?

• AlO

• Al2O

• Al2O3

• Al3O2

When naming ionic compounds, what must be included for transition metals?

• The number of atoms

• The state of matter

• The charge of the metal ion using Roman numerals

• The color of the compound

What is the name of the compound with the formula Ba3N2?

• Barium nitride

• Barium nitrite

• Barium nitrate

• Barium nitrogen

How do you determine the charge of a transition metal in a compound?

• By guessing

• By using the periodic table

• By deconstructing the compound and balancing charges

• By looking at the color of the compound

What is the name of the compound Fe2O3?

• Iron oxide

• Iron(II) oxide

• Iron(III) oxide

• Iron(IV) oxide