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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
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chemical, chemical substance go
material produced by or used in a reaction involving changes in atoms or molecules
material produced by or used in a reaction involving changes in atoms or molecules
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compound, chemical compound go
(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
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hydride
any binary compound formed by the union of hydrogen and other elements
any binary compound formed by the union of hydrogen and other elements
noun.substance
3 Subcategories
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hydrazoic acid, azoimide, hydrogen azide, HN go
a colorless explosive liquid that is volatile and poisonous and foul-smelling
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calcium hydride, hydrolith go
a saltlike binary compound (CaH2) used as a reducing agent and source of hydrogen
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sodium hydride go
a flammable grey crystalline binary compound (NaH)