Natural formation of lead occurs by radioactive decay of uranium and thorium through radon (222Rn). Four stable isotopes are known, 204Pb, 206Pb, 207Pb and 208Pb, the first three of which are used for estimating the ages of rocks. Lead compounds exist mainly in +2 or +4 oxidation states, the former being more common.
Because there is a lot of rain, it is a tropical area and has a tropical climate.
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<span>Both the salicylic acid and the aspirin contains the carboxylic acid groups. Yes, the mixture of salicylic acid and aspirin can be separated by using the acid-based extraction. To dissolve the aspirin you need to use NaOH and it can isolate the aqueous layer.</span>
A) Nitrogen Hope this helped you
