Assertion: oxygen | /r/HasProperty | reactive
Facets:
value: highly
type: DEGREE
value: too chemically
type: MANNER
value: to remain
type: PURPOSE
Source sentences:
text: Oxygen is too chemically reactive to remain a free element in air without being continuously replenished by the photosynthetic action of living organisms.
text: Oxygen is a highly reactive element; it is involved in a massive variety of different chemical reactions and is absolutely integral to many of the chemical processes that occur nonstop around and throughout the Earth.
text: It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.
text: Oxygen is a highly reactive substance and must be segregated from combustible materials.
text: Oxygen is extremely reactive and forms oxides with nearly all other elements except noble gases.
text: Oxygen is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element that readily forms compounds with most elements except the noble gases Helium and Neon.
text: Oxygen is very reactive and must be kept away from anything that can burn.
text: Oxygen is reactive and will form oxides with all other elements except the noble gases helium, neon, argon, and krypton.
text: It is chemically reactive and readily combines with a variety of materials.
text: Oxygen is too chemically reactive to remain a free element in Earth's atmosphere without being continuously replenished by the photosynthetic action of living organisms, which use the energy of sunlight to produce elemental oxygen from water.