Chemistry, 12.08.2019 16:20 imstressed
Ddt was once considered a "silver bullet" that would permanently eradicate insect pests. today, instead, ddt is largely useless against many insects. which of these would have been required for this pest eradication effort to be successful in the long run? a) larger doses of ddt should have been applied. b) all habitats should have received applications of ddt at about the same time. c) the frequency of ddt application should have been higher. d) none of the individual insects should have possessed genomes that made them resistant to ddt. e) ddt application should have been continual.
Answers: 3
Chemistry, 22.06.2019 15:00
Which are forms of frozen water? check all that apply. dew frost hail rain sleet
Answers: 2
Chemistry, 22.06.2019 20:00
Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
Answers: 3
Chemistry, 22.06.2019 23:00
What is the measured amount of a product obtained from a chemical reaction?
Answers: 1
Ddt was once considered a "silver bullet" that would permanently eradicate insect pests. today, inst...
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