3. how many moles are in a sample of tin that contains 2.0 x 102 atoms? show your work

What happens to isotopes that are unstable?

Word equation for k(s) +h2o(l) yield koh (aq) + h2

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules