Balancing Chemical Equations Practice

The video tutorial explains how to balance a double displacement reaction involving sulfuric acid and sodium phosphate. It introduces a method to simplify the process by counting polyatomic ions as single units. The tutorial walks through the steps of balancing the equation by adjusting coefficients to ensure equal numbers of each type of atom on both sides. The process is broken down into manageable steps, focusing on balancing sodium, sulfate, and phosphate ions, and concludes with a balanced chemical equation.

What type of reaction is described in the video involving sulfuric acid and sodium phosphate?

• Double displacement reaction

• Single displacement reaction

• Synthesis reaction

• Decomposition reaction

Why is it helpful to count polyatomic ions like sulfate and phosphate as single units?

• It makes the equation more complex

• It increases the number of atoms to count

• It changes the chemical properties

• It simplifies the balancing process

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

• Two

• Four

• Three

• One

What is the first step taken to balance the sodium atoms in the equation?

• Add a coefficient of 2 to sodium sulfate

• Add a coefficient of 3 to sodium sulfate

• Add a coefficient of 2 to sodium phosphate

• Add a coefficient of 3 to sodium phosphate

After balancing sodium, what is the next element to be balanced?

• Oxygen

• Hydrogen

• Phosphate

• Sulfate

What coefficient is placed in front of H2SO4 to balance the sulfates?

• 1

• 2

• 4

• 3

How many hydrogen atoms are present on the product side after balancing?

• Eight

• Six

• Four

• Two

What is the final coefficient placed in front of phosphoric acid to complete the balancing?

• 4

• 2

• 1

• 3

Why is it important to count polyatomic ions on both sides of the equation?

• To increase the number of steps

• To change the chemical reaction type

• To ensure the equation is unbalanced

• To simplify the counting and balancing process

What is the final balanced equation for the reaction between H2SO4 and Na3PO4?

• 3H2SO4 + 2Na3PO4 → 3Na2SO4 + 2H3PO4

• H2SO4 + Na3PO4 → Na2SO4 + H3PO4

• H2SO4 + Na3PO4 → Na2SO4 + H2PO4

• 2H2SO4 + 3Na3PO4 → 2Na2SO4 + 3H3PO4