Balancing Chemical Equations and Reactions

This video tutorial demonstrates how to balance the chemical equation for copper(II) sulfate and ammonium phosphate. It begins by counting the atoms and ions on each side of the equation, treating polyatomic ions as single units for simplicity. The tutorial then guides viewers through the process of balancing the equation by adjusting coefficients to ensure equal numbers of each type of atom on both sides. The video concludes with the final balanced equation, noting that all components are aqueous except for copper(II) phosphate, which forms a solid precipitate.

What is the main goal of the video tutorial?

• To demonstrate the synthesis of copper(II) phosphate

• To balance the chemical equation for copper(II) sulfate and ammonium phosphate

• To discuss the solubility of ammonium phosphate

• To explain the properties of copper(II) sulfate

Which ion is treated as a single unit during the balancing process?

• Copper ion

• Sulfate ion

• Ammonium ion

• Phosphate ion

How many copper atoms are present on the product side before balancing?

• Four

• Three

• Two

• One

What coefficient is placed in front of copper sulfate to balance the copper atoms?

• Four

• Three

• Two

• One

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

• Two

• Eight

• Four

• Six

What coefficient is used in front of ammonium phosphate to balance the equation?

• Four

• Three

• Two

• One

What is the state of copper(II) phosphate in the final balanced equation?

• Liquid

• Gas

• Solid

• Aqueous

Which compound forms a precipitate in the reaction?

• Copper(II) sulfate

• Ammonium sulfate

• Ammonium phosphate

• Copper(II) phosphate

What is the final balanced equation for the reaction?

• CuSO4 + 2(NH4)3PO4 → Cu3(PO4)2 + 3(NH4)2SO4

• 3CuSO4 + (NH4)3PO4 → Cu3(PO4)2 + 2(NH4)2SO4

• CuSO4 + (NH4)3PO4 → Cu3(PO4)2 + (NH4)2SO4

• 3CuSO4 + 2(NH4)3PO4 → Cu3(PO4)2 + 3(NH4)2SO4