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Fudgin [204]
3 years ago
5

How do i know if a reaction is exo/endothermic?

Chemistry
1 answer:
oee [108]3 years ago
8 0

Answer:

You would if a reaction is exo/endothermic because an endothermic reaction soaks up heat. An exothermic reaction releases heat.

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What is the [H+] in a solution with pOH of 0.253?
sergey [27]
PH + pOH = 14

pH + 0.253 = 14

pH = 14 - 0.253

pH = 13.747

[ H+] = 10 ^ -pH

[ H+ ] = 10 ^- 13.747

[ H+ ] = 1.790x10⁻¹⁴ M

hope this helps!
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