A chemist mixed two substances together. Their repeating groups of atoms are shown below on the left. After they were mixed, the chemist analyzed the results and found two substances. Did a chemical reaction occur? Is the ending substance the same substance as the blue powder? What happened to the atoms of the starting substances when the ending substances formed? Be sure to explain your answers to both of these questions.

answer; /// i do believe that the correct answer is (a) boiling

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"

the link still does not work even when adding it to the url bar

explanation:

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.