Assertion: deuterium | /r/CapableOf | replace protium
Facets:
value: in a compound
type: OTHER
value: to form heavy water
type: PURPOSE
value: in water molecules
type: OTHER
Source sentences:
text: Deuterium can replace protium in water molecules to form heavy water (D 2 O), which is about 10.6% denser than normal water (so that ice made from it sinks in ordinary water).
text: When it replaces protium in a compound, its presence can easily be detected because it weights twice as much as a protium atom.