Balancing Chemical Equations Practice

This video tutorial demonstrates how to balance the chemical equation AgNO3 + ZnI2. It begins by counting the atoms on both sides of the equation, treating nitrate as a single unit. The tutorial then focuses on balancing iodide atoms by adjusting coefficients, followed by balancing silver and nitrate ions. The process is explained step-by-step, ensuring the equation is balanced correctly. The video concludes with a summary of the balanced equation.

What is the initial chemical equation discussed in the video?

• AgBr + ZnCl2

• Ag2O + ZnSO4

• AgCl + ZnBr2

• AgNO3 + ZnI2

Why can nitrate ions be considered as a single unit during the balancing process?

• They are not present in the reaction.

• They change into a different compound.

• They remain intact and do not dissociate.

• They are unstable and break apart easily.

How many iodide atoms are initially present on the product side?

• Four

• One

• Two

• Three

What coefficient is placed in front of AgI to balance the iodide atoms?

• 1

• 2

• 3

• 4

After balancing iodide atoms, how many silver atoms are present on the product side?

• Four

• Three

• Two

• One

What coefficient is used in front of AgNO3 to balance the silver atoms?

• 1

• 2

• 3

• 4

How many nitrate ions are present on the reactant side after balancing?

• Four

• Three

• Two

• One

What is the final balanced chemical equation?

• 2AgNO3 + ZnI2 → 2AgI + Zn(NO3)2

• AgNO3 + ZnI2 → AgI + Zn(NO3)2

• AgNO3 + ZnI2 → 2AgI + Zn(NO3)2

• 2AgNO3 + ZnI2 → AgI + Zn(NO3)2