Balancing Lithium and Oxygen Reactions

The video tutorial explains how to balance a chemical equation involving lithium and oxygen. It begins by identifying the reactants and products, then proceeds to balance the oxygen atoms by adding a coefficient. Next, it balances the lithium atoms by adjusting the coefficients accordingly. The tutorial concludes with a balanced equation and a brief summary.

What is the product formed when lithium reacts with oxygen gas?

• Lithium chloride

• Lithium oxide

• Lithium hydroxide

• Lithium carbonate

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

• Four

• Three

• Two

• One

What coefficient is added in front of Li2O to balance the oxygen atoms?

• One

• Two

• Three

• Four

After balancing the oxygen atoms, how many lithium atoms are on the product side?

• Five

• Four

• Three

• Two

What coefficient is used in front of lithium to balance the lithium atoms?

• Two

• Three

• Four

• Five

What is the final balanced equation for the reaction between lithium and oxygen?

• Li + 2O2 → Li2O

• Li + O2 → Li2O

• 4Li + O2 → 2Li2O

• 2Li + O2 → Li2O