Understanding Ionic Equations

Why is it important to consider individual ions when expressing reaction rates?

• To simplify the chemical equation

• To accurately compare reaction rates

• To eliminate spectator ions

• To avoid using coefficients

What happens to HCl in an ionic equation?

• It dissociates into H+ and Cl- ions

• It becomes a gas

• It forms a solid

• It remains as HCl

What is the charge of the zinc cation in ZnCl2?

• 0

• 3+

• 2+

• 1+

What are spectator ions?

• Ions that participate in the reaction

• Ions that change their charge

• Ions that form solids

• Ions that do not participate in the reaction

How is the net ionic equation derived?

• By including all ions

• By changing the coefficients

• By excluding spectator ions

• By adding more reactants

Which equation type shows all individual ions present in a reaction?

• Formula equation

• Complete ionic equation

• Net ionic equation

• Molecular equation

What does the formula equation show?

• Molecular formulas and states

• Individual ions

• Only the products

• Only the reactants

In the reaction between bromine and iron(III) iodide, what form does bromine take?

• Solid form

• Molecular form

• Ionic form

• Gaseous form

What happens to Fe3+ ions in the reaction between bromine and iron(III) iodide?

• They react with bromine

• They form a solid

• They become gaseous

• They remain as spectator ions

What is the final product when bromine reacts with iron(III) iodide?

• Solid iodine

• Aqueous iodine

• Gaseous iodine

• Iodine ions