Answer:
D.) Nitrogen and Hydrogen are very stable bonds compared to the bonds of ammonia.
Explanation:
For the reaction:
3H₂(g) + N₂(g) → 2NH₃(g)
The enthalpy change is ΔH = -92kJ
This enthalpy change is defined as the enthalpy of products - the enthalpy of reactants. As the enthalpy is <0, The enthalpy of products is <em>lower </em>than the enthalpy of reactants.
Also, it is possible to obtain the enthalpy change from the bond energies of products - bond energies of reactants, thus, The total bond energies of products are <em>lower</em> than the total bond energies of reactants.
The rate of the reaction couldn't be determined using ΔH.
As the bond energy of ammonia is lower than bonds of nitrogen and hydrogen, <em>D. Nitrogen and Hydrogen are very stable bonds compared to the bonds of ammonia.</em>
I hope it helps!
Answer is: small animals, insects and seeds originating form nearby land masses come to new volcanic island blown over by winds, crashing on shore pushed by the waves. Birds come easy by flying. They adopt to new enviroment or evolve into the new species. This new species are unique.
Answer: Chemical energy
Explanation: In this case plants convert light energy (1) into chemical energy, (in molecular bonds), through a process known as photosynthesis. Most of this energy is stored in compounds called carbohydrates. The plants convert a tiny amount of the light they receive into food energy.
For this equation to be balanced, you'd need:
C₆H₁₂O₆ = 1 (Which has an atomic mass of 180.15588)
C₂H₅OH = 2 (Which has an atomic mass of 46.06844)
CO₂ = 2 (Which has an atomic mass of 44.0095)
I hope I helped :)
