Balancing Chemical Equations Concepts

The video tutorial explains how to balance a chemical equation involving calcium chloride and sodium phosphate in a double displacement reaction. It begins by counting the atoms of each element involved, then proceeds to balance the equation by adjusting coefficients to ensure the same number of each type of atom on both sides of the equation. The tutorial concludes with a balanced equation and emphasizes the simplification achieved by treating phosphate as a single unit.

What type of reaction occurs when calcium chloride is added to sodium phosphate?

• Double displacement

• Decomposition

• Single displacement

• Synthesis

How many chlorine atoms are initially present in the equation?

• Six

• Three

• Two

• One

What coefficient is used to balance the calcium atoms in the equation?

• One

• Four

• Three

• Two

How many chlorine atoms are present after balancing?

• Eight

• Two

• Six

• Four

What coefficient is placed in front of NaCl to balance the chlorine atoms?

• Two

• Four

• Six

• Eight

How many phosphates are present after balancing the equation?

• Three

• Four

• One

• Two