D. Synthesis cause A + B --> AB
Equation: 2Na + Cl2 --> 2NaCl
The similarities of physical and chemical changes is that both of those changes change the way the object looks by it's physical appearance. Also they use a type of element to change that object.
Out of the following choices, the one that shows a periodic pattern is "the mother takes her medication everyday at 7."
Option C: Sulfur Dioxide is the answer
Hope this helps
Evaporation occurs when water molecules on the surface gain enough energy to enter the atmosphere. However, stronger intermolecular forces between water molecules cause them to be strongly attracted to each other and to tend to stay in the liquid phase. When the temperature is raised (when heat is applied), more molecules gain the energy needed to escape these intermolecular forces and go into the vapor phase.
Therefore the best answer is D.
