Balancing Chemical Equations

The video tutorial explains how to balance the chemical equation AL + FEO, which involves aluminum and iron II oxide. It starts by counting the atoms of each element on both sides of the equation. The tutorial emphasizes leaving free elements like aluminum and iron to be balanced last. The process involves balancing oxygen atoms first, followed by iron and aluminum, to achieve a balanced equation. The tutorial concludes with a reminder to balance free elements last for easier equation balancing.

What is the first step in balancing a chemical equation?

• Adjusting coefficients randomly

• Balancing the charges

• Counting the atoms on each side

• Changing the chemical formulas

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

• Three

• Four

• Two

• One

What coefficient is placed in front of FeO to balance the oxygen atoms?

• Two

• One

• Four

• Three

After balancing the oxygen atoms, how many iron atoms are present on the reactant side?

• One

• Two

• Three

• Four

What is the strategy for balancing free elements like aluminum and iron?

• Ignore them

• Leave them until last

• Balance them first

• Double their coefficients

What is the final balanced equation for the reaction between aluminum and iron(II) oxide?

• Al + FeO → AlO + Fe

• 2Al + 3FeO → Al2O3 + 3Fe

• Al + FeO → Al2O3 + Fe

• 2Al + 3FeO → 2AlO + 3Fe