Oxygen is an element
"compound"
Rocks (in general) are neither a single compound, or an element. They are a mixture of compounds.
It's a mixure
Lead (Pb) is a chemical element.
"compound"
Juices are complex heterogeneous mixtures.
oxygen is a element ! :)
Oxygen is an element.
A compound.
element
No, it is an element.
Oxygen is both a compound and an element. In nature, Oxygen forms bonds with itself to form a compound consisting of two elemental oxygen atoms to form one compounded oxygen molecule. This is O2.