Balancing Chemical Equations Practice

The video tutorial explains how to balance the chemical equation of ammonia reacting with phosphoric acid to form ammonium phosphate. It begins by counting the atoms on both sides of the equation, focusing on nitrogen and hydrogen atoms. The instructor demonstrates how to balance the equation by adjusting coefficients, starting with nitrogen and then hydrogen, ensuring all atoms are balanced. The tutorial concludes with a summary of the balanced equation.

What is the initial number of nitrogen atoms on the reactant side of the equation?

• Two

• Four

• One

• Three

How many hydrogen atoms are initially present on the reactant side?

• Six

• Nine

• Twelve

• Three

What is the total number of hydrogen atoms on the product side before balancing?

• Twelve

• Nine

• Fifteen

• Six

Which element is chosen first to balance the equation?

• Oxygen

• Hydrogen

• Nitrogen

• Phosphorus

What coefficient is placed in front of NH3 to balance the nitrogen atoms?

• One

• Two

• Four

• Three

After balancing nitrogen, how many hydrogen atoms are on the reactant side?

• Fifteen

• Nine

• Twelve

• Eighteen

What is the final balanced chemical equation?

• 3NH3 + H3PO4 → NH3PO4

• NH3 + 3H3PO4 → NH4PO4

• 3NH3 + H3PO4 → (NH4)3PO4

• NH3 + H3PO4 → NH4PO4

What is the main benefit of starting with nitrogen to balance the equation?

• It simplifies balancing oxygen.

• It automatically balances phosphorus.

• It helps in balancing hydrogen easily.

• It reduces the number of steps.