Question

For the reaction C₂H₆ + O₂ → CO₂ + H₂O, match the proper coefficient to the chemical substance it goes with for a balanced reaction.

a) 6 C₂H₆
b) 7 O₂
c) 2 CO₂
d) 4 H₂O

Answer 1

The balanced chemical equation for the reaction of C2H6 with O2 to form CO2 and H2O is 2 C2H6 + 7 O2 → 4 CO2 + 6 H2O. This includes the correct coefficients for each compound, representing both the number of molecules and the number of moles involved.

Step-by-step explanation:

The question involves the subject of balancing chemical equations, crucial in Chemistry to comply with the Law of Conservation of Mass. To balance the reaction C2H6 + O2 → CO2 + H2O, we must ensure that there are equal numbers of each type of atom on both sides of the equation. After analyzing the equation, the correct coefficients that balance the equation are:

• 2 C2H6
• 7 O2
• 4 CO2
• 6 H2O

Therefore, when balanced, the equation should read: 2 C2H6 + 7 O2 → 4 CO2 + 6 H2O. This indicates the number of formula units or molecules as well as the number of moles for each substance in the balanced equation.