Balancing Chemical Equations Tutorial

The video tutorial explains how to balance a chemical equation involving hydrochloric acid and barium hydroxide, resulting in barium chloride and water. The instructor, Dr. B, guides viewers through the process of ensuring that the number of each type of atom is equal on both sides of the equation. The tutorial covers balancing hydrogen, oxygen, and chlorine atoms, and concludes with a balanced equation.

What is the initial chemical equation presented in the tutorial?

• HCl + H2O → Ba(OH)2 + BaCl2

• H2O + BaCl2 → HCl + Ba(OH)2

• Ba(OH)2 + H2O → HCl + BaCl2

• HCl + Ba(OH)2 → BaCl2 + H2O

Which atom is analyzed first in the initial atom analysis?

• Barium

• Chlorine

• Oxygen

• Hydrogen

How many hydrogen atoms are initially counted on the product side?

• One

• Two

• Three

• Four

What adjustment is made to balance the chlorine atoms?

• Add a coefficient of 2 in front of Ba(OH)2

• Add a coefficient of 2 in front of HCl

• Add a coefficient of 2 in front of H2O

• Add a coefficient of 2 in front of BaCl2

After adjusting the chlorine atoms, how many hydrogen atoms are on the reactant side?

• Two

• Three

• Five

• Four

What coefficient is added in front of water to balance the hydrogen atoms?

• One

• Two

• Three

• Four

How many oxygen atoms are present on each side after balancing?

• One

• Four

• Two

• Three

What is the final balanced chemical equation?

• 2HCl + Ba(OH)2 → BaCl2 + 2H2O

• HCl + Ba(OH)2 → BaCl2 + H2O

• 2HCl + 2Ba(OH)2 → 2BaCl2 + 2H2O

• HCl + 2Ba(OH)2 → BaCl2 + H2O

Which element's atoms are balanced last in the tutorial?

• Oxygen

• Barium

• Hydrogen

• Chlorine

What is the main goal of the tutorial?

• To study the periodic table

• To learn about chemical reactions

• To balance a chemical equation

• To understand the properties of water