im not ssure but its formed by the oyster being irritated my a peic of sand so it forms a protective layer around t and the layers keep building upon each other. hope this helps=P
Aluminium is an element . it is not compound or mixture.
It's an element. Check your periodic table.
Silver ore is a heterogeneous mixture, as it contains various minerals and impurities along with the silver.
Mouthwash is typically a homogeneous mixture. This means that the components are evenly distributed throughout the solution and the mixture has a uniform composition.
A solution of gases is not correct. it should be a mixture of gases
It is a heterogeneous mixture.
It is a heterogeneous mixture.
Heterogeneous mixture.
It is a heterogeneous mixture.
It is a heterogeneous mixture.
mixture
element
It is a heterogeneous mixture.
Heterogeneous
Sulphur is an element. It is neither compound nor mixture.
Sulphur is an element. It is neither compound nor mixture.
Dirt is generally (but not obligatory) a heterogeneous mixture.