Answer:
Option C. 88 KJ
Explanation:
The activation energy (Ea) is the minimum energy that reactant must overcome in order for them to proceed to product.
In an energy profile diagram, the activation energy (Ea) is obtained by calculating the difference between the energy of the activation complex (i.e peak) and the energy of the reactant.
With the above information, we shall determine the activation energy (Ea) of the reaction above as follow:
Activation complex = 268.74 KJ
Energy of reactant = 180.74 KJ
Activation energy (Ea) =?
Activation energy = Activation complex – Energy of reactant
Activation energy = 268.74 – 180.74
Activation energy = 88 KJ
Therefore, the activation energy (Ea) of the reaction is 88 KJ
Answer:
Covalent bonds involve the sharing of electron pairs between atoms. Electron pairs shared between atoms of equal or very similar electronegativity constitute a nonpolar covalent bond (e.g., H–H or C–H), while electrons shared between atoms of unequal electronegativity constitute a polar covalent bond (e.g., H–O).
Explanation:
Heat flow by conduction requires that the two systems must not be touching each another.
<h3>What is heat energy?</h3>
Heat energy is a form of energy that exists due to a temperature difference between two objects.
Heat energy flows from an object at higher temperature to an object at a lower temperature.
Heat transfer by conduction involves the vibration of particles of the medium transferring heat due to contact between the two objects.
Therefore, heat flow by conduction requires that the two systems must not be touching each another.
Learn more about heat conduction at: brainly.com/question/893656
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Hydrogen and carbon because they are the most common element of canyon
