The structure of propenoic acid is shown here. indicate the type of hybridization for each numbered atom.

In Chemistry, hybridization is referred as steric number which is all about the regions of electron density that surrounds an atom. In this given problem, the structure of propenoic acid, here is the type of hybridization for each numbered atom:

Label 1, 2, 3 and 5 are all sp2

Label 4 is sp

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).