Balancing Chemical Equations Practice

The video tutorial demonstrates how to balance a chemical equation involving fluorine gas and lithium bromide to yield lithium fluoride and bromine gas. It begins by counting the atoms on each side of the equation, identifying the imbalance in fluorine and bromine atoms. The tutorial then shows how to adjust coefficients to balance the equation, ensuring equal numbers of each type of atom on both sides. The process involves placing coefficients in front of compounds to achieve balance, resulting in a balanced chemical equation.

What is the initial count of fluorine atoms on the reactant side of the equation?

• Four

• One

• Two

• Three

Which element's atoms are initially unbalanced on the product side?

• Oxygen

• Lithium

• Fluorine

• Bromine

What coefficient is placed in front of LiF to balance the fluorine atoms?

• 4

• 3

• 2

• 1

After balancing fluorine, which element's atoms are still unbalanced?

• Bromine

• Both Lithium and Bromine

• Lithium

• Neither

What coefficient is used in front of LiBr to balance lithium and bromine atoms?

• 1

• 2

• 3

• 4

How many lithium atoms are present on the product side after balancing?

• One

• Two

• Three

• Four

What is the final balanced chemical equation?

• F2 + LiBr -> 2LiF + Br2

• 2F2 + LiBr -> 2LiF + Br2

• F2 + LiBr -> LiF + 2Br2

• F2 + 2LiBr -> 2LiF + Br2