Examlex
The same side of the Moon is always visible from Earth.
Homogeneous Mixture
A mixture in which the composition is uniform throughout and the different components cannot be distinguished.
Copper Sulfate
A blue crystalline chemical compound of copper and sulfate ions, used in various applications such as agriculture and chemistry.
Bluing
A process used to protect steel against rust by forming a thin protective layer of magnetite (Fe3O4) on its surface.
Carbon Dioxide
A colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in air and is absorbed by plants in photosynthesis.
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