- If an atom has a diameter of 395 pm, what is its radius?

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9 kg of water at 16°C is placed in a refrigerator kept at 2°C. How much heat is transferred from the water to cool it to 2°C? I need help with an algebra question? How do i find the answer about study? Ibuprofen has the formula C13H18O2. Combustion of 0.250g of this compound would result in how many grams of CO2? Should i go for an Engineering degree even thought i didn`t do any math or informatics in high school ? Can i catch up ?