Balancing Chemical Equations

The video tutorial explains how to balance a chemical equation involving iron (Fe) and chlorine (Cl2) to form iron(III) chloride (FeCl3). It begins by counting the atoms on each side of the equation, then adjusts coefficients to balance the chlorine atoms, followed by balancing the iron atoms. The tutorial concludes with a review of the balanced equation, ensuring that both sides have equal numbers of each type of atom.

What is the initial number of chlorine atoms on the reactant side before balancing?

• One

• Two

• Three

• Four

How many iron atoms are present on the product side initially?

• Three

• Two

• One

• Zero

What is the purpose of multiplying the odd number of chlorine atoms by two?

• To increase the number of iron atoms

• To make the number of chlorine atoms even

• To decrease the number of chlorine atoms

• To balance the equation completely

What coefficient is placed in front of Fe to balance the iron atoms?

• Four

• Three

• Two

• One

How many chlorine atoms are needed on the reactant side to balance the equation?

• Four

• Eight

• Two

• Six

What is the final balanced chemical equation?

• 2Fe + Cl2 → 2FeCl3

• 2Fe + 3Cl2 → 2FeCl3

• Fe + Cl2 → FeCl3

• Fe + 2Cl2 → FeCl3