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Q: TRUE OR FALSE Interstellar reddening results when stars near death become Red Giants.
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Q: If V= 9.14L at 24.0°c; Find V (L) at 48.0°c.
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- TRUE OR FALSE Interstellar reddening results when stars near death become Red Giants.What is the significance of whether the fluorescent substance in fluorescent tubes has a short or long phosphorescence?What are the uses of Iodine in KFR? answer at your own words and answer should be to the point, not any irrelevant words
- 3. (a) Calculate the number of core and surface atoms for a 40 nm spherical FCC Cu particle. Find out the surface coverage of atoms. Calculate surface area to volume ratio of the particle. (Given, radii of Cu=0.128 nm); Diameter Shell 49d 99d 125d 156d XXL number 25 50 60 80 dinlWhat is the chemistry of how spf blocks uv rays from the sun Please please please answer as fast as possible pleaseWhat is the actual or real-life application of electrogravimetric analysis? Include the specific methodology.
- 5 What is the atomic number of a neutral atom that has 8 neutrons and 7 electrons? a. 15b. 8c. 7d. 1 6 Methods that employ separation of the product chemically through precipitation, with purification, drying and weighing of the resultant product: A. Spectrophotometric analysisB. Volumetric analysisC. Gravimetric analysisD. Gasometric analysis7 Phase changes involving fusion, except:a. Solid to liquidb. Liquid to solidc. Gas to liquidd. Gas to solidOn the Moon’s surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected. The distance to the Moon is calculated from the round-trip time. What percent correction is needed to account for the delay in time due to the slowing of light in Earth’s atmosphere? Assume the distance to the Moon is precisely 3.84×108 m , and Earth’s atmosphere (which varies in density with altitude) is equivalent to a layer 30.0 km thick with a constant index of refraction n = 1.000293.Chemistry Describe how an ICP plasma torch (atomizer) operates, why it may be necessary to use one, and some advantages / disadvantages of using one.
- X rays travel fasterthan microwaves. is it true / false ?Match each statement with one or more of the following: flame AA, flame photometry, atomic fluorescence, ICP, graphite furnace AA, and spark emission. (a) The technique that uses a partially ionized stream of argon gas called a plasma - (b) The technique in which a light source is used to excite atoms, the emission from which is then measured - (c) The three techniques that require light to be directed at the atomized ions - (d) The technique that utilizes a solid sample - (e) The four techniques that measure some form of light emission by excited atoms present in an atomizer - (f) The absorption technique in which the atoms are in the path of the light for a relatively short time - (g) The technique in which the emitting source may reach a temperature of 6000 K -How do solvent, temperature, and pH affect fluorescence of fluorophore?
