A chemical reaction has the equation 4AI (s) + 3 O2 (g) → 2Al2O3 (s). What type of reaction is this? A. Double displacement
B. Decomposition
C. Single displacement
D. Synthesis

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.