p. 8 1. How was the first quasicrystal discovered? – The quasicrystal was discovered while Daniel Shechtman was experimenting on a chilled molten mixture of aluminium and manganese which revealed a 10-fold symmetry. 2. Compare crystals and quasicrystals. – the crystal, the patterns are tightly packed, they have no space in between, and look the same in whatever angle. And the quasicrystal, the atoms exhibit a regular pattern, but the pattern is not repeated. 3. What are the uses of quasicrystals? – They are used for surgical needles, razor, nonstick frying pan, and light emitting diode lights.
p. 13 1.How does a magnetic tongue work? – It uses nuclear magnetic resonance spectroscopy to assess flavours. 2. Do you think the magnetic tongue is useful? Why or why not? – Yes, because the magnetic tongue is as good as a professional food taster when it comes to assessing flavours.
3. What is NMR spectroscopy? – It is an analytic tool that allows scientists to study the physical, biological, and chemical properties of matter. p. 19 1. What are the new features in the family of compounds made by the researchers in UJI? – It can be used with a wider range of solvents and will not cause toxic or allergic reactions to users.
. Give some examples of gels found in your home. Describe them – Yoghurts, fruity gelatine, sweet jelly candies, styling gel and cream shampoo. 3. Do you think the new material is useful for you? Why or why not? – Yes, because it won’t harm me by not causing toxic or allergic reaction. p. 21 1. How does Ling Zang’s mercury tester work? – It uses perylene dye and a DNA binding group for detecting mercury concentrations. 2. What are the causes of mercury pollutions? – Mercury is produced from industries such as coal-fired power plants, chemical manufacturing, and cement production. 3.
Do you thing coal-fired power plants, chemical manufacturers and cement producers should adopt Lin Zang’s device? Justify your answer. – Yes, mercury is a big threat to our environment. Since they are the main cause of mercury pollution, they should adopt the device to lessen it. Bato Balani Journal #2 p. 8 1. How does aromatherapy help in a person’s well-being? – It improves one’s mood and physical well-being through body massage. 2. How does the use of essential oils contribute to indoor pollution? – They are said to produce VOCs that can stay in the air even after the source is gone.
When in contact with ozone, they form SOAs that can cause irritation in the eyes, nose, throat and respiratory system. 3. How does pollution occur in an enclosed area like the home? – While pollution is present, the layout and ventilation of the spa have an impact on the level of pollution produced while an aroma therapy massage is being performed. 4. With what you’ve learned about the bad side of essential oils, do you think you would still enjoy a day at the spa. Explain your answer. – No, because I won’t be that relaxed anymore knowing that there’s still pollution even when you’re indoors. . Would you use essential oils at home? Why or why not? – Maybe, when the need arises but as much as possible, no because it causes indoor pollution. p. 13 1. What did chemists Matt Sigman and Kaid Harper discover about catalysts? – They found out that the sizes and electronic properties of catalysts interact with each other, 2.
What data does the mathematical technique they devised provide? – It helps identify the best size and electronic properties for potential catalysts. 3. How do the findings of Sigman and Harper help in the development of catalysts? It can help to use up less energy and to produce less waste especially greenhouse gases. 4. What products you use at home contain catalyst? – Everything we used including medicines, food, beauty products, toys, and writing instruments. p. 19 1. Describe metal oxide framework. – Porous crystals constructed from metal cations that are linked by organic molecules. 2. What are the uses of MOFs? – They are useful as storage for natural gases and a means to deliver drugs. They can also be applied in carbon capture and as catalysts and chemical sensors. p. 21 1. What are the components of the super foam?
Explain how it works. – It is made from cheap and readily available materials: hemicellulose, chitosan, and citric acid. It can absorb water and water contaminants including heavy metals. 2. What are the uses of super foam? – It removes pollutants and can help in the desalinization of saltwater to potable water. 3. Do you think the super foam is a useful invention? Why? – Yes, it can help us in a lot of things like removing pollutants. Bato Balani Journal #3 p. 8 1. What is the Haber-Bosch process and why was its invention in the early 20th century significant? It is the synthesis of ammonia from nitrogen and hydrogen using high temperatures and pressure, and a catalyst like iron. 2. According to chemists from the University of Rochester, how is ammonia formed from Nitrogen through the Haber-Bosch process? – It takes three atoms of iron to split two atoms of nitrogen.
The chemical complex produced thereafter reacts with hydrogen to form ammonia. 3. Do you think the Rochester study is relevant? Why or why not? – Yes, they’ve conducted the experiment with so much effort and time. p. 24 1. How does the fluorescent-sensor technique work? It uses a flexible polymer with a fluorescing chemical on one end that connects to EGFR. The other end connects to a fluorescence microscope slide and a molecule that quenches the fluorescence. 2. What are the benefits of using a fluorescent-sensor technique in studying cells? – It will help chemists design pharmaceutical drugs that can control such forces. p. 19 1. How are man-made elements like 114 and 116 created? – These elements were synthesized using calcium ions smashes into curium. 2. Explain the naming process for elements. It was named after the laboratory where it was synthesized. p. 21 1. Explain what chemists call the most difficult experiment to conduct. – SHEs require time-sensitive and costly experiments. Scientists have to prepare radioactive ions using particle accelerators.
2. What goes on in a cyclotron? – Charged hydrogen and helium nuclei are accelerated at great speeds and bombarder against metal foils. Bato Balani Journal #4 p. 8 1. Compare the traditional method of deriving chemical reactions with the process developed by the Princeton University researchers? The traditional method takes time and may have to repeat the experiment many times to get the ideal chemical while the process developed by Princeton University researchers provides a quicker and easier way to derive a chemical by using a high accelerator. 2. What makes and ideal reaction take place? – The chemist should have the right combination of chemical reactants and a suitable way to make the reaction take place. 3. What are the benefits of being able to speed up a chemical reaction? – It saves time and the chance to repeat the experiment all over again.
It can take away the weeks of waiting from the traditional process of making pharmaceutical-like compounds. 4. What is photoredox catalysis? – It enables a reaction to take place when inorganic catalysts absorb light particles from the light source then pass an electron onto the organic molecules. p. 13 1. How does a Suzuki reaction take place? – A boronic acid reacts with an aryl or vinyl halide with the catalyst palladium. 2. What is its importance in industries? – It can be used in developing medicinal compounds as well as innovative products. 3. How were scientists able to expand the possible applications of the Suzuki Method? Researchers developed a way to synthesize a class of intermediates that go through a Suzuki reaction. p. 19 1. What happened to methylhydroxycarbene while it was trapped? – It disappeared from its containment. It also yielded a wrong product, acetaldehyde instead of vinyl alcohol.
2. Why were scientists baffled when the reaction took place? – They think that the reaction shouldn’t be happening because it was trapped in argon and surrounded by inert gas molecules. 3. What is quantum tunnelling? – Chemicals go through an alternative system to react. It may drive reactions in paths that traditional theories have not seen. . 21 1. Give some characteristics of water – Water is the only substance that can exist in the three states of matter. It has a high surface tension. 2. What is the most recent property of liquid water discovered by scientists Kumar and Stanley? – Using computer stimulations, water can undergo a liquid to liquid phase transition when chilled below the freezing point. 3. How were Kumar and Stanley able to discover the new property of liquid water? – Under such low temperatures, liquid water undergoes sharp but continuous structural changes but the local structure of liquid becomes ordered similar to that of ice.
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Bato Balani. (2016, Oct 19). Retrieved from https://graduateway.com/bato-balani/