Ammonium and Nitrite Ions Concepts

The video tutorial explains how to write the formula for ammonium nitrite. It begins by identifying the ammonium ion (NH4) and its positive charge, followed by the nitrite ion (NO2) and its negative charge. The tutorial emphasizes the importance of memorizing these ions or using a polyatomic ion table. It then explains that ammonium nitrite is an ionic compound formed by these two polyatomic ions, and the charges must balance to zero. The formula for ammonium nitrite is NH4NO2. The video concludes with a brief sign-off.

What is the chemical formula for the ammonium ion?

• NO2

• NH2

• NH4

• NH3

Which of the following is true about the ammonium ion?

• It is found on the periodic table.

• It has a charge of 1-.

• It has a charge of 2+.

• It is a polyatomic ion.

What is the chemical formula for the nitrite ion?

• NO2

• NO3

• NH4

• N2O

Which statement is correct about the nitrite ion?

• It is found on the periodic table.

• It is a monatomic ion.

• It has a charge of 2+.

• It has a charge of 1-.

What is the net charge of ammonium nitrite?

• 1-

• 2-

• 0

• 1+

How do the charges of ammonium and nitrite ions combine in ammonium nitrite?

• They add up to 0.

• They add up to 1-.

• They add up to 2+.

• They add up to 1+.