12 what kind of blood disease is responsible for the

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12. What kind of blood disease is responsible for the vampire myth? 13. What is the name of the chemical family that includes chlorophyll and haem (in blood)? 14. As the energy gap narrows in a “band gap” colorant, what is the next color in the sequence: yellow, orange, red………..? 15. If an object does not absorb any visible wavelengths it will appear to be what color? 16. “Phosphorescence” in a ship's wake is more accurately referred to as ...... ? 17. [4] Which physical cause The 'glory' around a plane's s of color is responsible for… A “sun dog” Blue Sky The colors of a soap bubble 18 [5] Do one of the following: . (Around 100 words and cite your sources, as always) a) Find the names and chemical formulas of two synthetic, yellow inorganic pigments that have " chemical color". b) Find the chemical structure of a dye for textiles developed in the 20 th century. Give its name(s), and say what fibers it would be useful for dyeing. c) What is the spacing between the lines of information pits a) on a CD, and b) in a typical diffraction grating? (Give the answer in microns. 1 micron is 1x10 -6 meters) d) How many layers and how thick are the layers in an “interference pigment”? What are they made of?
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