When a counterfeit detection pen is used on an authentic bill, what color does it turn?
1 answer:
Answer:
Explanation:
the answer is C, sometimes it can be brown
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Answer: when concentrations of acid and base are same, pH = pKa
PH = 12.38 pOH = 1.62
Explanation: pKa= -log(Ka)= 12.38. PH + pOH = 14.00
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