Balancing Chemical Equations and Reactions

The video tutorial explains the combustion reaction of CH2O with O2, resulting in CO2 and H2O. It demonstrates how to count atoms and balance the chemical equation, highlighting common mistakes such as miscounting oxygen atoms. The tutorial concludes with a summary of the balanced equation.

What are the products formed when CH2O reacts with O2 in a combustion reaction?

• Methane and oxygen

• Carbon dioxide and water

• Hydrogen and carbon dioxide

• Carbon monoxide and water

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

• Four

• Three

• Two

• One

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

• Four

• Three

• Two

• One

Why is it important to count all oxygen atoms on both sides of the equation?

• To ensure the equation is balanced

• To determine the reaction speed

• To calculate the energy released

• To identify the limiting reactant

What common mistake do people make when balancing this equation?

• Ignoring some oxygen atoms

• Counting extra carbon atoms

• Adding extra water molecules

• Forgetting to count hydrogen atoms

What is the balanced chemical equation for the reaction between CH2O and O2?

• CH2O + O2 → CO + H2O

• CH2O + O2 → CO2 + H2O

• CH2O + O2 → CH4 + O2

• CH2O + O2 → H2 + CO2