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23. Why are X-rays more dangerous than radio waves? Be specific. Enter answer.. 24. The electricity travelling through large power lines can be as high as 230,000V. Why is this voltage so high? What would happen if a lower voltage was used? Enter answer… 25, Describe an example of a homogeneous and heterogeneous mixture. What is the difference between the two. How can you tell that you have one or the other? Enter answer…
Expert Answer
23) smaller wavelength of the X-rays made them penetrate deep in to our body in to the cells.
24) High voltage helps the electricity travel better. Long distance tranmissin of electriity is impossible with low volatge.
25) Homogeneous mixture: Same uniform appearance and composition Ex: air
Hetergeneous mixture: It is visibly different substance and phases Ex: oil and water mixture
26) Rhodium is hard and durable. High melting point. It has high electrical and heat conductivity.
27) CaO: calcium Oxide
CF4 : tetrafluoromethane
(NH4)2S : Ammonium sulphide
C2N3: Cyanoiminomethylideneazanide
