Barium Nitrate and Nitrate Ions

The video explores the behavior of barium nitrate when mixed with water. It explains that barium nitrate is an ionic compound, which typically dissolves in water. Using a solubility table, it confirms that barium nitrate is soluble. The video then describes the dissociation process, where barium nitrate breaks into barium ions and nitrate ions in water. Finally, it demonstrates how to write the chemical equation for this reaction, emphasizing the aqueous state of the dissolved ions.

What type of compound is barium nitrate?

• Organic compound

• Metallic compound

• Ionic compound

• Covalent compound

Which of the following is true about nitrates in water?

• They react violently

• They are usually insoluble

• They form a precipitate

• They are usually soluble

What charge does barium have in barium nitrate?

• 3+

• 1+

• 2+

• 0

What happens to barium nitrate when it is placed in water?

• It remains a solid

• It dissociates into ions

• It forms a gas

• It changes color

What is the charge on the nitrate ion?

• 1-

• 2-

• 3-

• 0

How many nitrate ions are present when barium nitrate dissociates?

• Three

• Four

• Two

• One

What does 'aq' signify in a chemical equation?

• The substance is a solid

• The substance is a gas

• The substance is dissolved in water

• The substance is a liquid

Why don't we need to write water on the product side of the equation?

• Because it is a reactant

• Because it is implied by 'aq'

• Because it evaporates

• Because it forms a new compound

What is the significance of the coefficient in front of the nitrate in the equation?

• It indicates the number of water molecules

• It indicates the number of nitrate ions

• It indicates the number of compounds formed

• It indicates the number of barium ions

What is the final state of barium nitrate in water?

• Aqueous

• Gas

• Liquid

• Solid