Strontium Nitrate and Nitrate Ions

The video tutorial explains how to name the compound Sr(NO3)2, known as strontium nitrate. It begins by identifying strontium as a metal and NO3 as a polyatomic ion, the nitrate ion. The tutorial covers the rules for naming ionic compounds, emphasizing the need to balance charges. Strontium, with a 2+ charge, requires two nitrate ions, each with a 1- charge, to form the compound Sr(NO3)2. The video concludes with a recap of the naming process and the derived formula.

What is the metal component in Sr(NO3)2?

• Silicon

• Sulfur

• Strontium

• Sodium

What type of ion is NO3 in the compound Sr(NO3)2?

• Anion

• Cation

• Polyatomic ion

• Monatomic ion

What is the name of the polyatomic ion NO3?

• Nitride

• Nitrite

• Nitrate

• Nitrogen

How do you determine the name of Sr(NO3)2?

• By using the atomic number

• By identifying the metal and polyatomic ion

• By counting the number of atoms

• By using the molecular weight

What is the charge of the nitrate ion in Sr(NO3)2?

• 2+

• 1+

• 1-

• 2-

How many nitrate ions are needed to balance the charge of one strontium ion?

• Two

• Four

• One

• Three

What is the final chemical formula for strontium nitrate?

• Sr2(NO3)3

• Sr(NO3)2

• SrNO3

• Sr(NO2)2