PLEASE HELP WITH ANY OF THESE IM FAILING CHEM AND MY TEACHER HATES ME

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

Uranium can supply energy for the worlds electricity without admitting harmful greenhouse gases which of these statements best describes an outcome of uranium mining

Increasing the substrate concentration in an enzymatic reaction could overcome which of the following? a) the need for a coenzymeb) allosteric inhibitionc) competitive inhibitiond) insufficient cofactors