Balancing Chemical Reactions and Ions

The video tutorial explains how to balance the chemical equation of sodium phosphate and silver nitrate, a double displacement reaction. It introduces a trick for counting polyatomic ions as single units to simplify the process. The tutorial guides viewers through counting atoms on both sides of the equation and adjusting coefficients to achieve balance. The process is demonstrated step-by-step, ensuring clarity and understanding of balancing chemical equations.

What type of reaction involves the exchange of ions between two compounds?

• Synthesis reaction

• Decomposition reaction

• Double displacement reaction

• Single displacement reaction

In a double displacement reaction, what happens to the ions of the reactants?

• They remain unchanged

• They form a single compound

• They change places

• They are destroyed

What is the benefit of treating polyatomic ions as single units when balancing equations?

• It simplifies the balancing process

• It makes the equation more complex

• It increases the number of steps

• It changes the chemical properties

Which polyatomic ion is mentioned as staying together in the reaction?

• Carbonate (CO3)

• Phosphate (PO4)

• Nitrate (NO3)

• Sulfate (SO4)

How many sodium atoms are present on the reactant side before balancing?

• Four

• Three

• Two

• One

What is the first element balanced in the equation?

• Nitrate

• Phosphate

• Silver

• Sodium

What coefficient is used to balance the sodium atoms?

• 1

• 2

• 3

• 4

After balancing sodium, how many nitrate ions are present on the reactant side?

• One

• Two

• Three

• Four

What is the final step in balancing the equation?

• Balancing sodium

• Balancing silver

• Balancing water

• Balancing phosphate

What is the balanced equation for sodium phosphate and silver nitrate?

• Na3PO4 + 3AgNO3 → 3NaNO3 + Ag3PO4

• Na3PO4 + AgNO3 → NaNO3 + Ag3PO4

• Na3PO4 + AgNO3 → 3NaNO3 + Ag3PO4

• 3Na3PO4 + AgNO3 → NaNO3 + 3Ag3PO4