Balancing Chemical Equations Practice

The video tutorial explains how to balance a chemical equation involving magnesium nitride and water. It begins by counting the atoms on each side of the equation and proceeds to balance magnesium, oxygen, nitrogen, and hydrogen atoms step by step. The tutorial emphasizes leaving hydrogen and oxygen balancing until the end and concludes with the final balanced equation.

What is the initial number of magnesium atoms on the reactant side of the equation?

• One

• Two

• Three

• Four

How many nitrogen atoms are present on the reactant side before balancing?

• Four

• Three

• Two

• One

What coefficient is placed in front of MgO to balance magnesium atoms?

• One

• Two

• Three

• Four

After balancing magnesium, how many oxygen atoms are there on the product side?

• Four

• Three

• Two

• One

What coefficient is used in front of ammonia to balance nitrogen atoms?

• One

• Two

• Three

• Four

How many hydrogen atoms are there on the product side after balancing nitrogen?

• Four

• Five

• Six

• Seven

What is the final coefficient in front of water to balance hydrogen atoms?

• Four

• Three

• Two

• One

How many oxygen atoms are there on both sides of the equation after balancing?

• Four

• One

• Two

• Three

What is the final balanced equation for the reaction between magnesium nitride and water?

• Mg3N2 + 6H2O -> 3MgO + 2NH3

• Mg3N2 + 3H2O -> 3MgO + 2NH3

• Mg3N2 + 6H2O -> 3MgO + NH3

• Mg3N2 + 3H2O -> MgO + 2NH3