Answer:
What is the problem?
Who has the problem?
Where does the problem occur?
When does the problem occur?
How often does the problem occur?
What causes the problem?
What does the problem impact?
Explanation:
Answer:
The forward reaction is an exothermic reaction.
Explanation:
An exothermic reaction is one in which energy is released, usually in the form of heat hence the enthalpy of the reaction is negative. When a reaction exothermic, the energy of the reactants is greater than the energy of the products hence the excess energy is given out as heat. The reactants lie at a higher energy level in the reaction profile compared to the products.
When we look at the reaction given in the question, NO(g) ⇌ 12N2(g) + 12O2(g) ΔH = −90.3 kJ , we can easily see from the thermochemical reaction that the forward reaction is exothermic, energy is released by the reaction system as evidenced by the negative enthalpy of reaction.
Answer: add 2 valence electrons
Explanation:
You have to make up for the negative electrons so you add them
