Balancing Chemical Equations

The video tutorial explains how to balance the chemical equation of calcium chloride reacting with sodium carbonate to yield calcium carbonate and sodium chloride. It begins by counting the atoms on both the reactant and product sides of the equation. The tutorial identifies the imbalance in sodium and chlorine atoms and demonstrates how to balance the equation by adjusting coefficients. The final balanced equation is presented, ensuring equal numbers of each type of atom on both sides.

What are the products formed when calcium chloride reacts with sodium carbonate?

• Calcium oxide and sodium hydroxide

• Calcium sulfate and sodium nitrate

• Calcium phosphate and sodium bicarbonate

• Calcium carbonate and sodium chloride

How many chlorine atoms are present on the reactant side initially?

• Four

• Three

• Two

• One

Which element's atoms are imbalanced between the reactant and product sides before balancing?

• Calcium

• Carbon

• Sodium

• Oxygen

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

• 1

• 2

• 3

• 4

After balancing, how many sodium atoms are present on each side of the equation?

• Three

• Two

• One

• Four

What is the balanced chemical equation for the reaction between calcium chloride and sodium carbonate?

• CaCl2 + Na2CO3 → CaCO3 + NaCl

• 2CaCl2 + Na2CO3 → CaCO3 + 2NaCl

• CaCl2 + Na2CO3 → CaCO3 + 2NaCl

• CaCl2 + 2Na2CO3 → 2CaCO3 + NaCl