Atotal of 25.0 ml of 0.150 m potassium hydroxide (koh) was required to neutralize 15.0 ml of sulfuric acid (h2so4) of unknown concentration. what is the concentration of the sulfuric acid?
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Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

2-bromo-2-methylbutane undergoes an e1 elimination reaction in the presence of ethanol. in the next reaction only one of the possible products is represented. although the product shown is not the major product of the reaction, notice that there is more than one way it can be produced. complete the mechanism and draw the missing substances.