(i) Explain the term combinatorial chemistry, and discuss its significance for the drug discovery. (ii) Describe the main techniques used for combinatorial chemistry.
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A: There are total 6 Resonating Structures for SO4-2.Correct Option :(A) -> 6 Resonating Structures.
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- 6. (a) What is, the difference between Science and Green Environmental Chemistry? (b) How can a chemical process be made energy efficient?Jack and Jill are curious about the factors that affect plant growth. They perform several experiments using pea plants (a) The leaves of the pea plants that received too much water turned yellow. (b) Jill decided that 5 hours of indirect sunlight gave optimum growth. (c) Jack gave the pea plants a controlled amount of water each day. (d) Jill thinks that too little sunlight will affect plant growth. This part please (a) Identify one variable (other than water and sunlight) that could be tested. (b) Write a hypothesis using this variable. (c) Design an experiment to test this variable.What is the role of environmental chemistry in the development of sustainable technologies?
- (4) Treatises are (a) A comprehensive presentation of broad area of chemistry. (b) Books of comprehensive discussions of contemporary knowledge in a limited field. (c) Contain complete reports of the research work that are done for advanced academic degree. (d) The paper of conference may be published in a separate volume rather than journals. (5) Aldrichimica Acta is an example on periodical published by (a) Chemical and scientific societies (b) Private companies (c) universities (d) Private industriesTwo positively charged spheres, each with a charge of 2.0x 10-5 C, a mass of 1.0 kg, and separated by a distance of 1.0 cm, are held in place on a frictionless track. (a) What is the electrostatic potential energy of this system? (b) If the spheres are released, will they move toward or away from each other? (c) What speed will each sphere attain as the distance between the spheres approaches infinity?The studies on the toxic effects of chemicals in the environment are important in attempting to measure and assess the toxic effects. (a)With a suitable examples, identify TWO main effects of toxicity. ( 4 ) (b)There are several routes of entry of the toxicant into the human body which in the end can cause harmful diseases. From your point of view, why a modern lifestyle can create a pattern of harmful disease due to a toxicant and suggest how to overcome the unwanted interaction from happening. ( 16 ) ( Total / Jumlah: 20 )
- What is Donnan's theory? What is its importance in biophysical chemistry?Why it is important to study material chemistry in reference to engineering, especifically, Industrial Engineering. Discuss the importance of knowing the theories behind this topicWhich of the following best define systems thinking in chemistry? Systems thinking is learning about chemistry within real-word contexts. Systems thinking focuses on the interdependence between chemistry components, as well as the influence of chemistry on other systems. Systems thinking is a way of thinking about chemistry systematically.