Balancing Chemical Reactions Concepts

The video tutorial explains how to balance the chemical equation FeSO4 plus NaOH by counting atoms on both sides. It introduces a trick for double displacement reactions, where polyatomic ions like sulfate (SO4) and hydroxide (OH) are counted as single items. The tutorial demonstrates balancing the equation by adjusting coefficients, specifically for sodium and hydroxide ions, to achieve a balanced equation. The process is simplified by treating polyatomic ions as single units, making it easier to balance such reactions.

What type of reaction is FeSO4 plus NaOH?

• Decomposition

• Single displacement

• Double displacement

• Synthesis

How do we simplify the balancing process for double displacement reactions?

• By counting polyatomic ions as single units

• By ignoring polyatomic ions

• By balancing each atom individually

• By using only whole numbers

Which polyatomic ion is counted as a single unit in this reaction?

• Carbonate

• Nitrate

• Phosphate

• Sulfate

What coefficient is used in front of NaOH to balance the sodium atoms?

• 4

• 2

• 1

• 3

What is the final step to ensure the equation is balanced?

• Adjust the coefficient of FeSO4

• Check the balance of hydrogen atoms

• Verify that all atoms are balanced on both sides

• Add more reactants