Manganese is a chemical element, designated by the symbol Mn. It has the atomic number 25. It is not found as a free element in nature, it is often found in ...
Steel is an alloy of iron and carbon that is widely used in construction and other applications because of its hardness and tensile strength. Carbon, other elements ...
Minerals and Their Uses. Every segment of society uses minerals and mineral resources everyday. The roads we ride or drive on and the buildings we live learn and work ...
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A list of thousands of chemistry questions answered by experts from the U.S. Argonne National Laboratory.