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Q. How many centigrams are in 5 kilograms?
Two conversion factors are essential to solve this problem. Keep in mind that there are 1000 grams in a kilogram and 100 centigrams in a gram. To conclude the number of centigrams in 1 kilogram set up the first conversion factor so that kilograms cancel out. Place up the second conversion factor so that grams cancel out.
Q. What are the Chemical Properties of Halogens? Ans. he halogens have 7 valence electrons in their outermost shell. Note that 7 is one electron short of the octet.
fuul explaination
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