Brainliest will be given! ! you have 40 g of a radioisotope. if the half-life of this radioisotope is 4 days, how many grams will remain after 12 days? show work!

What is the polyatamic ion of borate

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon