Balancing Chemical Equations Concepts

The video tutorial explains how to balance a chemical equation involving nitric oxide and hydrogen gas, resulting in nitrogen gas and water. It begins by counting the atoms on each side of the equation, then proceeds to balance the nitrogen, oxygen, and hydrogen atoms by adjusting coefficients. The process is methodical, ensuring each element is balanced, leading to the final balanced equation: NO + H2 yields N2 + H2O.

What is the initial number of nitrogen atoms on the reactant side of the equation?

• Two

• One

• Three

• Four

What is the first step taken to balance the nitrogen atoms in the equation?

• Add a coefficient of 2 in front of NO

• Add a coefficient of 3 in front of NO

• Add a coefficient of 3 in front of H2

• Add a coefficient of 2 in front of H2

After balancing the nitrogen atoms, what issue arises with the oxygen atoms?

• There are too many oxygen atoms on the reactant side

• There are too few oxygen atoms on the product side

• The oxygen atoms are already balanced

• There are too many oxygen atoms on the product side

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

• 4

• 3

• 2

• 1

How many hydrogen atoms are present on the product side after balancing the oxygen atoms?

• Five

• Two

• Three

• Four

What is the final step to balance the hydrogen atoms in the equation?

• Add a coefficient of 4 in front of H2

• Add a coefficient of 3 in front of H2

• Add a coefficient of 1 in front of H2

• Add a coefficient of 2 in front of H2

What is the balanced chemical equation for the reaction?

• NO + 2H2 → N2 + H2O

• NO + H2 → N2 + H2O

• 2NO + 2H2 → N2 + 2H2O

• 2NO + H2 → N2 + 2H2O

Who is the narrator of the video?

• Dr. A

• Dr. B

• Dr. C

• Dr. D