Balancing Chemical Equations

The video tutorial explains how to balance a chemical equation involving mercury and nitric acid. It introduces a trick to simplify the process by treating nitrate as a single polyatomic ion. The tutorial guides through counting atoms, balancing hydrogen and nitrate ions, and concludes with the final balanced equation.

What is the first step in balancing the equation of mercury and nitric acid?

• Count the number of atoms on each side.

• Add coefficients to balance the equation.

• Ignore the polyatomic ions.

• Start with balancing hydrogen.

Why is nitrate considered as a single unit in the balancing process?

• Because it is a metal.

• Because it is a simple ion.

• Because it is not reactive.

• Because it is a polyatomic ion.

How do you balance the hydrogen atoms in the equation?

• By adding a coefficient of 3 in front of HNO3.

• By adding a coefficient of 2 in front of HNO3.

• By adding a coefficient of 1 in front of HNO3.

• By adding a coefficient of 4 in front of HNO3.

What is the result of multiplying the nitrate by two?

• It balances the oxygen atoms.

• It balances the nitrate ions.

• It balances the hydrogen atoms.

• It balances the mercury atoms.

What is the final step in balancing the equation?

• Balancing the oxygen atoms.

• Balancing the nitrate ions.

• Balancing the hydrogen atoms.

• Balancing the mercury atoms.

What coefficient is added in front of Hg to balance the equation?

• 1

• 4

• 2

• 3

What is the benefit of treating nitrate as a single unit?

• It makes the equation more complex.

• It simplifies the balancing process.

• It has no effect on the process.

• It increases the number of steps.