Balancing Chemical Reactions and Ions

The video tutorial explains how to balance a chemical equation involving zinc sulfate and sodium hydroxide, a double displacement reaction. The instructor demonstrates a trick to simplify the balancing process by treating polyatomic ions as single units. This method saves time and increases accuracy. The video concludes with a balanced equation and acknowledges a contributor for highlighting the equation.

What type of reaction is ZnSO4 + NaOH?

• Decomposition

• Single displacement

• Double displacement

• Synthesis

Which ions are treated as a single unit to simplify balancing?

• Zinc and sulfate

• Zinc and sodium

• Sodium and hydroxide

• Sulfate and hydroxide

How many sodium atoms are present on the product side before balancing?

• Four

• Two

• Three

• One

What is the coefficient of NaOH needed to balance the equation?

• 1

• 2

• 3

• 4

What is the benefit of treating polyatomic ions as single units?

• It makes the equation more complex

• It saves time and increases accuracy

• It requires more steps

• It changes the chemical properties

What is the final balanced equation for ZnSO4 + NaOH?

• ZnSO4 + NaOH → Zn(OH)2 + 2Na2SO4

• ZnSO4 + NaOH → Zn(OH)2 + Na2SO4

• ZnSO4 + 2NaOH → Zn(OH)2 + Na2SO4

• 2ZnSO4 + NaOH → Zn(OH)2 + Na2SO4

Who was acknowledged for alerting the narrator to the equation?

• The narrator

• Z Gaming

• A student

• Dr. Big