In a mixture, the two ingredients can be separated using physical processes, without chemical reactions. This is because they are not chemically bonded together. A particle diagram of a mixture ...

The reaction shown by the second diagram is more exothermic. There is a greater difference in energy between the reactants and products. The green arrow is longer.

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...