Question

Use the following video to answer the three questions below.
A chemist wants to observe the following reaction:
2H
+ O
à
2H
O
The chemist is standing beside a balloon filled with hydrogen. When the chemist holds a small flame up to thehydrogen balloon, the balloon pops, the hydrogen filled balloon explodes in a ball of fire.
Watch the video and answer the 3 questions belowthe video.
2
2
2
Giant Hydrogen Balloon Explosion #shorts #short
A)
Based on what you know about breaking and forming bonds, which part of the reaction has a higher bondenergy in the balloon video, the reactants or the products formed?
(2 points)
The bond energy in the reactant O
2
The combined energy of the reactants H
+ O
2
2
The bond energy of the product H
0
2
The bond energy in the reactant H
2

Answer 1

Answer: The bond energy of the product H2O.

Explanation: The reaction is highly exothermic because forming the O–H bonds in water releases more energy than is required to break the H–H and O=O bonds in the reactants. Thus the product bonds (O–H in H2O) are stronger (higher bond energy) than the reactant bonds.