Crime scene investigators keep a wide variety of compounds on hand to with identifying unknown substances they find in the course of their duties. one such investigator, while reorganizing their shelves, has mixed up several small vials and is unsure about the identity of a certain powder. elemental analysis of the compound reveals that it is 63.57% carbon, 6.000% hydrogen, 9.267% nitrogen, 21.17% oxygen by mass. which of the following compounds could the powder be? a. c11h15no2 = 3,4- (mdma), illicit drugb. c3h6no3 = hexamethylene triperoxide diamine (hmtd), commonly used explosivec. c21h23no5 = heroin, illicit drugd. c8h9no2 = acetaminophen, analgesice. c7h5n3o6 = 2,4,6-trinitrotoluene (tnt), common used explosivef. c17h19no3 = morphine, analgesicg. c10h15n = methamphetamine, stimulanth. c4h5n2o = caffeine, stimulant
Answers: 2
Chemistry, 21.06.2019 13:30
If a 60-g object has a volume of 30 cm3, what is its density? 2 g/cm3 0.5 cm3/g 1800 g * cm3 none of the above
Answers: 3
Chemistry, 22.06.2019 02:30
When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.
Answers: 3
Chemistry, 22.06.2019 04:30
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.
Answers: 1
Crime scene investigators keep a wide variety of compounds on hand to with identifying unknown subs...
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