Balancing Chemical Equations Concepts

The video tutorial explains how to balance the chemical equation C + H2 yields CH4. It begins by taking an inventory of atoms on both sides of the equation, identifying that the equation is not balanced due to differing numbers of hydrogen atoms. The tutorial then demonstrates how to balance the equation by adjusting the coefficients, specifically by placing a coefficient of 2 in front of H2, resulting in a balanced equation: C + 2H2 yields CH4. The video concludes with a confirmation that the equation is balanced, ensuring that the number of each type of atom is equal on both sides.

What is the initial number of hydrogen atoms on the reactant side in the equation C + H2 yields CH4?

• Four

• One

• Three

• Two

Why is the equation C + H2 yields CH4 not balanced initially?

• There are more carbon atoms on the product side.

• There are more hydrogen atoms on the reactant side.

• There are more carbon atoms on the reactant side.

• There are more hydrogen atoms on the product side.

What is the rule for balancing chemical equations?

• Change the subscripts of molecules.

• Add new elements to balance.

• Remove elements from the equation.

• Adjust the coefficients in front of molecules.

What coefficient is added in front of H2 to balance the equation?

• Four

• One

• Two

• Three

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

• Five

• Four

• Three

• Two

What is the final balanced equation for C + H2 yields CH4?

• C + 2H2 yields CH4

• C + H2 yields 2CH4

• C + H2 yields CH4

• 2C + H2 yields CH4