Balancing Chemical Equations Concepts

Dr. B explains how to balance the chemical equation for the synthesis of ammonia. The process involves ensuring that the number of nitrogen and hydrogen atoms are equal on both sides of the equation. By multiplying the odd number of hydrogen atoms by 2, Dr. B demonstrates how to achieve a balanced equation with equal numbers of atoms on each side.

What is the initial observation about the nitrogen atoms in the unbalanced equation for the synthesis of ammonia?

• The number of nitrogen atoms is equal on both sides.

• There are more nitrogen atoms on the reactant side.

• There are more nitrogen atoms on the product side.

• There are no nitrogen atoms on the reactant side.

Why is it suggested to multiply the odd number of hydrogen atoms by 2 in the balancing process?

• To make the equation more complex.

• To achieve an even number of hydrogen atoms.

• To increase the number of nitrogen atoms.

• To simplify the calculation.

What is the result of placing a coefficient of 2 in front of NH3 in the equation?

• It decreases the number of nitrogen atoms.

• It only increases the number of hydrogen atoms.

• It balances both nitrogen and hydrogen atoms.

• It balances the nitrogen atoms but not the hydrogen atoms.

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

• Two

• Four

• Six

• Eight

What is the final step to ensure the equation is balanced?

• Add more nitrogen atoms to the product side.

• Multiply the hydrogen atoms by 4.

• Ensure the number of atoms is equal on both sides.

• Remove excess hydrogen atoms from the reactant side.