[Daily Question] 2011-5-5
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This post was last edited by sxtblo on 2011-5-4 23:37. Answer to the question on May 4: C. True or False: The pH value is used to indicate the concentration of ( ). (A) Hydrogen ions (B) Hydroxide ions (C) Chloride ions (D) Calcium ions Note: 1) Rewards will be given to the top 30 participants each day (5 points for correct answers, 3 points for incorrect answers, 1 point for unhidden replies; additional points may be given to those who provide detailed discussions). 2) Please hide your replies; the method for doing this is: http://bbs.hcbbs.com/thread-492556-1-1.html5 3) Do not edit your replies after posting them. 4) This question will be closed the next day or when a new daily question is released. 5) Only the person who created the question has the right to award extra points
Reply 1# sxtblo B
Reply 1# sxtblo B
A The concentration of hydrogen ions; pH is the negative logarithm of the hydrogen ion concentration