Balancing Chemical Equations Concepts

The video tutorial explains how to balance a chemical equation involving iron(III) carbonate and hydrochloric acid. It begins by counting the atoms on each side of the equation, then proceeds to balance the iron, chlorine, hydrogen, and oxygen atoms by adjusting coefficients. The tutorial concludes with a balanced equation for Fe2(CO3)3 plus HCl.

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

• 1

• 2

• 3

• 4

How many iron atoms are present on the product side before balancing?

• 1

• 4

• 2

• 3

What coefficient is used in front of HCl to balance the chlorine atoms?

• 8

• 2

• 4

• 6

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

• 2

• 4

• 6

• 8

What is the total number of oxygen atoms on the product side after balancing?

• 11

• 9

• 7

• 5

What coefficient is used in front of CO2 to balance the carbon atoms?

• 1

• 4

• 2

• 3

How many oxygen atoms are there in the water molecule on the product side?

• 3

• 4

• 2

• 1

What is the final balanced equation for the reaction?

• Fe2(CO3)3 + 6HCl → 2FeCl3 + 3CO2 + 2H2O

• Fe2(CO3)3 + 6HCl → 2FeCl3 + 3CO2 + 3H2O

• Fe2(CO3)3 + 6HCl → 2FeCl3 + 3CO2 + 6H2O

• Fe2(CO3)3 + 3HCl → 2FeCl3 + 3CO2 + 3H2O

Who is the narrator of the video?

• Dr. D

• Dr. C

• Dr. B

• Dr. A