Balancing Chemical Equations Concepts

The video tutorial demonstrates how to balance a chemical equation involving nitric acid (HNO3) and aluminum hydroxide (AlOH3). It begins by counting the atoms on both the reactant and product sides. The instructor then balances the nitrogen atoms by placing a coefficient of 3 in front of HNO3. Next, the hydrogen atoms are balanced by adjusting the coefficient in front of H2O. The tutorial concludes with a balanced equation, ensuring that the number of atoms for each element is equal on both sides.

What are the reactants in the chemical equation discussed in the video?

• HNO3 and AlOH3

• H2O and AlOH3

• HNO3 and H2O

• AlOH3 and O2

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

• Six

• Four

• Eight

• Two

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

• Twelve

• Eight

• Ten

• Six

What coefficient is placed in front of HNO3 to balance the nitrogen atoms?

• 2

• 3

• 4

• 5

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

• Ten

• Nine

• Eleven

• Twelve

What coefficient is used in front of H2O to balance the hydrogen atoms?

• 4

• 2

• 1

• 3

How many hydrogen atoms are there on the reactant side after balancing?

• Eight

• Ten

• Six

• Four

What is the total number of oxygen atoms on both sides after balancing?

• Ten

• Eleven

• Thirteen

• Twelve

Which element's atom count remains unchanged throughout the balancing process?

• Hydrogen

• Nitrogen

• Oxygen

• Aluminum

What is the final balanced equation for the reaction?

• 3HNO3 + AlOH3 → Al(NO3)3 + 3H2O

• HNO3 + AlOH3 → Al(NO3)3 + H2O

• 2HNO3 + AlOH3 → Al(NO3)3 + 2H2O

• 4HNO3 + AlOH3 → Al(NO3)3 + 4H2O