Glossary

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bauxite

Subject: 

  • Physical Sciences

a natural, hydrated ore of aluminium Al2O3∙xH2O.

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isotopes
Subject:
Physical Sciences

atoms of the same element that contain equal numbers of protons (same atomic number) but...

STP (standard temperature and pressure)
Subject:
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273,15 K (0oC) and 100 kPa

molecular formula
Subject:
Physical Sciences

a chemical formula that gives the exact number of different atoms in a molecule .

thermosphere
Subject:
Physical Sciences

above the mesopause, at a height of 130 km.

product
Subject:
Physical Sciences

a new species or substance that exists after a chemical reaction has occurred. This excludes un-...