Iodine-131 has a half life of about 8 days. If you had 60 grams of I-131, how much would remain after 24 days?

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Define dew point. i am writing this part to be able to ask the question

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.