Which sentence describes the energy changes that take place when this chemical reaction occurs?
Ca + MgCl2 - Mg +CaCl2
O A. Energy is absorbed to break bonds in MgCl, and to form bonds in
CaCl2
B. Energy is absorbed to break bonds in MgCl2 and released when
the bonds in CaCl, form.
C. Energy is released when bonds in MgCl2 break and when bonds in
CaCl2 form
O D. Energy is released to break bonds in MgCl, and absorbed when
the bonds in CaCl2 form.