Balancing Chemical Equations Concepts

The video tutorial explains how to balance a chemical equation involving nitric acid and calcium hydroxide. It begins by counting the number of each type of atom on both sides of the equation. The instructor then adjusts the coefficients to balance the nitrogen atoms, followed by the hydrogen and oxygen atoms. The process involves updating the atom counts and ensuring that the equation is balanced on both sides. The tutorial concludes with a final check to confirm the balanced equation, emphasizing the importance of counting all atoms accurately.

What are the reactants in the given chemical equation?

• Nitrogen and calcium

• Hydrogen and oxygen

• Calcium nitrate and water

• Nitric acid and calcium hydroxide

How many hydrogen atoms are initially present on the reactant side?

• Three

• Two

• Four

• One

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

• Three

• Six

• Four

• Five

How many nitrogen atoms are present on the product side?

• Four

• One

• Two

• Three

What is the total number of oxygen atoms on the product side before balancing?

• Five

• Six

• Seven

• Eight

What coefficient is placed in front of nitric acid to balance the nitrogen atoms?

• Two

• One

• Three

• Four

After balancing the nitrogen atoms, how many hydrogen atoms are on the reactant side?

• Two

• Five

• Three

• Four

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

• Two

• One

• Four

• Three

How many oxygen atoms are on each side after balancing the equation?

• Eight

• Seven

• Nine

• Six

What is the final balanced chemical equation?

• 2HNO3 + Ca(OH)2 → Ca(NO3)2 + H2O

• HNO3 + 2Ca(OH)2 → Ca(NO3)2 + H2O

• 2HNO3 + Ca(OH)2 → Ca(NO3)2 + 2H2O

• HNO3 + Ca(OH)2 → Ca(NO3)2 + H2O