Answer:



Explanation:
Hello!
In this case, since the phosphoric acid is a triprotic acid, we infer it has three stepwise ionization reactions in which one hydrogen ion is released at each step, considering they are undergone due to the presence of water, thus, we proceed as follows:



Moreover, notice each step has a different acid dissociation constant, which are quantified in the following order:
Ka1 > Ka2 > Ka3
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Answer:
sulfuric acid
Explanation:
a strong acid that soluble in water.
Answer:
use the equation Q = mc ΔT
Q = heat energy transferred (joules)
m =mass of the liquid being heated (kilograms)
c = specific heat capacity of the liquid (joule per kilogram Celsius), ΔT = change in temperature (Celsius).
Answer:
Exotérmica.
Explanation:
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En este caso, dado que la mayoría de reacciones de combustión son exotérmicas, al generar calor en los productos, es posible inferir que esta reacción, referida a la combustion de metano es exotérmica debido a lo anteriormente mencionado, ya que el término de energía de reacción, 531 kcal, está al lado de los productos, lo que quiere decir que es energía generada.
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