Naming Binary and Ionic Formulas from Names

The video tutorial explains how to derive the formula of ionic compounds from their names. It covers the concept of ionic compounds being formed between metals and nonmetals, emphasizing the importance of charge neutrality. Through examples like potassium iodide, calcium chloride, sodium oxide, and magnesium phosphide, the tutorial demonstrates how to balance charges to achieve neutral compounds.

What type of ions do metals typically form in ionic compounds?

• Variable charged ions

• Neutral ions

• Positively charged ions

• Negatively charged ions

What is the net charge of an ionic compound?

• Positive

• Negative

• Neutral

• It varies

What is the charge of potassium in potassium iodide?

• +2

• -2

• +1

• -1

What is the charge of iodide in potassium iodide?

• +1

• -2

• +2

• -1

What is the formula for calcium chloride?

• CaCl

• CaCl2

• Ca2Cl

• Ca2Cl2

What charge does calcium typically have in ionic compounds?

• -1

• +2

• +1

• -2

How many sodium ions are needed to balance one oxide ion in sodium oxide?

• 3

• 4

• 2

• 1

What is the formula for sodium oxide?

• NaO

• Na2O

• NaO2

• Na2O2

Tags

NGSS.HS-PS1-2

What is the charge of magnesium in magnesium phosphide?

• -1

• +2

• +1

• -2

What is the formula for magnesium phosphide?

• MgP2

• MgP

• Mg2P3

• Mg3P2