Balancing Chemical Equations

The video tutorial explains how to balance the chemical equation Hg + Cl2 by counting atoms on each side. It starts with mercury and chlorine, then balances the chlorines by adjusting coefficients. The tutorial continues by balancing mercury and oxygen atoms, resulting in a balanced equation of HgO + Cl2. The process is explained step-by-step, ensuring clarity in balancing chemical equations.

What is the first step in balancing a chemical equation?

• Adjust the coefficients of the products

• Count the number of atoms on each side

• Add more reactants

• Remove excess products

How can you balance the chlorine atoms in the equation?

• Add more chlorine gas

• Change the subscript of chlorine

• Place a coefficient of 2 in front of HgCl

• Remove one chlorine atom

What happens to the mercury atoms when you place a coefficient of 2 in front of HgCl?

• They remain the same

• They double in number

• They decrease in number

• They become unbalanced

What is the final step in balancing the given chemical equation?

• Changing the subscript of oxygen

• Removing excess products

• Adding more reactants

• Balancing the oxygen atoms

What is the balanced equation for HgO plus Cl2?

• HgO + Cl2 → Hg2Cl2 + O2

• HgO + Cl2 → HgCl + O2

• HgO + Cl2 → HgCl2 + O2

• HgO + Cl2 → Hg + Cl2O