Pumice is the result of extremely fast cooling lava.
The Slavs
physical change
acid + base = salt + water
same as any other tornado just over water
nothing happens.
Bacteria and Cells with fomed from the big bang, but if you are a creationist then, Adam and eve
The sharing of electrons (equally or uneqally as in polar covalent bond.
The seashell is fomed from calcium carbonate; CaCO3 is thermally decomposed by heating.
Carboxyhemoglobin is the complex fomed by the combination of carbon monoxide and hemoglobin.
It is a precipitate.
Bacterias, which are the lowest and the simplest.
Ozone is a trioxygen molecule. It is naturally fomed by the action of UV light on oxygen molecule.