solid
Al2O3
3
acidic oxides
Chemical bonds are formed and energy is released.
Yes, hydrogen and oxygen atoms form covalent bonds when they chemically combine.
Covalent
CO
Al2O3
3
Oxygen atoms form covalent bonds with each other
Hemoglobin combines readily with oxygen.
acidic oxides
moisture, warmth and oxygen
No one knows now do they
acidic oxides
Its a chemical change, and the simplest is when two atoms combine to from a compound. When there is a single oxygen atom, it is called ozone, then two combine in an ionic bond, they are an oxygen molecule.
potassium oxide is formed. 4K + O2 ---> 2K2O