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Which is an element?
O A. A molecule made of iron and oxygen
O B. An alloy of iron and tin
O C. A nail made of iron
D. A mixture of iron and lead

Respuesta :

CrystalQueen

Answer:

C.) A nail made of iron

Explanation:

Elements are not just one atom. However, the atoms must all be of the same type. A, B, and D all contain a mixture of different types of atoms. C is the only answer that contains just one type of atom.
C. Iron nail

As it has only one element

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