Balancing Chemical Equations

The video tutorial demonstrates how to balance the chemical equation F2 + PF4 = PF3. It begins by counting the atoms of fluorine and phosphorus on both sides of the equation. The instructor then adjusts the coefficients to balance the phosphorus atoms, followed by the fluorine atoms. The final balanced equation is presented, ensuring equal numbers of each type of atom on both sides.

What is the initial number of fluorine atoms on the reactant side of the equation F2 + PF4 -> PF3?

• 4

• 3

• 2

• 1

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

• 4

• 3

• 2

• 1

What coefficient is added in front of PF3 to balance the phosphorus atoms?

• 2

• 3

• 5

• 4

After adjusting the phosphorus atoms, how many fluorine atoms are on the product side?

• 10

• 8

• 14

• 12

What coefficient is used in front of F2 to balance the fluorine atoms?

• 4

• 5

• 6

• 7

What is the final balanced equation for F2 + PF4 -> PF3?

• 2F2 + PF4 -> 4PF3

• 6F2 + PF4 -> 4PF3

• 3F2 + PF4 -> 4PF3

• F2 + PF4 -> 4PF3