Understanding Ionic Equations

What is a precipitation reaction?

• A reaction where a gas is formed

• A reaction where a solid is formed from two aqueous solutions

• A reaction where only liquids are involved

• A reaction that involves only gases

What does a molecular equation show?

• The dissociation of ions in water

• The full formula of each substance without showing ionic dissociation

• Only the products of a reaction

• The net ionic equation

What happens to ionic compounds in water according to complete ionic equations?

• They dissociate into their respective ions

• They remain intact

• They form a new compound

• They evaporate

What is the purpose of a net ionic equation?

• To show the molecular formula of reactants

• To balance the chemical equation

• To show only the ions directly involved in forming the precipitate

• To show all ions present in a reaction

Which ions are considered spectator ions?

• Ions that do not change during the reaction

• Ions that are only present in the products

• Ions that participate in forming the precipitate

• Ions that are only present in the reactants

In the example of barium chloride reacting with sodium sulfate, what is the precipitate formed?

• Sodium chloride

• Barium chloride

• Barium sulfate

• Sodium sulfate

What is the charge of the sulfate ion in the example provided?

• 1+

• 2+

• 1-

• 2-

In the reaction between sodium chloride and silver nitrate, what is the insoluble product?

• Silver chloride

• Sodium chloride

• Sodium nitrate

• Silver nitrate

What is the role of a solubility table in these reactions?

• To identify the precipitate formed

• To measure the temperature of the reaction

• To determine the color of the compounds

• To calculate the mass of the reactants

Which of the following is not a step in writing a net ionic equation?

• Identifying spectator ions

• Writing the complete ionic equation

• Balancing the molecular equation

• Calculating the molar mass