Balancing Chemical Equations

The video tutorial demonstrates how to balance the chemical equation for magnesium nitride reacting with water. It begins by counting the atoms on both sides of the equation, then proceeds to balance magnesium, nitrogen, and hydrogen atoms step-by-step. The tutorial concludes with a balanced equation and a brief summary of the process.

What is the initial number of magnesium atoms in the reactants?

• Two

• Four

• Three

• One

How many hydrogen atoms are initially present in the products?

• Three

• Five

• Six

• Two

What is the first step in balancing the equation?

• Balance nitrogen

• Balance magnesium

• Balance oxygen

• Balance hydrogen

After balancing magnesium, how many hydrogen atoms are there?

• Six

• Nine

• Fifteen

• Twelve

What change is made to balance nitrogen atoms?

• Add a coefficient of 3 to nitrogen

• Add a coefficient of 2 to nitrogen

• Add a coefficient of 1 to nitrogen

• Add a coefficient of 4 to nitrogen

How many hydrogen atoms are there after balancing nitrogen?

• Ten

• Eleven

• Twelve

• Nine

What coefficient is added to water to balance hydrogen atoms?

• Seven

• Four

• Five

• Six

How many oxygen atoms are there after balancing the equation?

• Four

• Five

• Seven

• Six

What is the final step to ensure the equation is balanced?

• Check magnesium

• Check oxygen

• Check nitrogen

• Check hydrogen