Wikimedia neighborhood · Wikidata observation Observed Graph-projection

copper(II) oxide

chemical compound

Provider: Wikidata. These recorded connections are observations, not Counterpedia claims. They do not establish source support.

Data and provenance

Provider: Wikidata · Entity ID: Q421787

Release: sha256:f33228901a35b0683356002a46df9ceb11f399d05f17abb5c7c78256cbf38ba7

Graph membership is not truth. Each relation below is an observed typed edge the local Wikimedia graph bundle already materialized — not a corroborated, verified, or admitted claim. Bounded to 40 relations via an offset-index lookup (offset_index_binary_search), never a full scan of the bundle.Serving a published subset: joined entities + 1-hop neighborhood of 35,994 exact Wikipedia–Wikidata title matches. A subject that is not itself in that subset carries only the relations the subset recorded for it, so a small count here is the published scope and not a complete relationship inventory.

Development requests are not available on this deployment. The observed entity and its graph links remain readable.

1-hop relations (29)

Observed adjacency only. Each spoke is a typed edge already materialized in the graph, labeled by its recorded predicate — graph proximity is not support, corroboration, or admission. The links below are the accessible, no-JavaScript path to the same neighbors.

Follow a connection

Grouped by a fixed presentation taxonomy for legibility only. The grouping asserts no rank, truth, support, or standing — every observed edge is carried, none reordered by importance.

Identity & relations (2)

→ subclass of (P279)copper oxideObserved
Relationship details
Provider: Wikidata · Property: P279 · Direction: outgoing · Entity ID: Q106920642
→ instance of (P31)type of chemical entityObserved
Relationship details
Provider: Wikidata · Property: P31 · Direction: outgoing · Entity ID: Q113145171

Other connections (25)

→ Relationship name unavailable (P2107)1879 Q42289Observed
Relationship details
Provider: Wikidata · Property: P2107 · Direction: outgoing
→ Relationship name unavailable (P556)monoclinic crystal systemObserved
Relationship details
Provider: Wikidata · Property: P556 · Direction: outgoing · Entity ID: Q624543
→ Relationship name unavailable (P4952)NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency ResponseObserved
Relationship details
Provider: Wikidata · Property: P4952 · Direction: outgoing · Entity ID: Q51139288
→ Relationship name unavailable (P2670)copperObserved
Relationship details
Provider: Wikidata · Property: P2670 · Direction: outgoing · Entity ID: Q753
→ Relationship name unavailable (P233)O=[Cu]Observed
Relationship details
Provider: Wikidata · Property: P233 · Direction: outgoing
→ described by source (P1343)Meyers Konversations-Lexikon, 4th edition (1885–1890)Observed
Relationship details
Provider: Wikidata · Property: P1343 · Direction: outgoing · Entity ID: Q19219752
→ Relationship name unavailable (P2404)0.1 Q21077820Observed
Relationship details
Provider: Wikidata · Property: P2404 · Direction: outgoing
→ Relationship name unavailable (P690)space group 15Observed
Relationship details
Provider: Wikidata · Property: P690 · Direction: outgoing · Entity ID: Q13365574
→ Relationship name unavailable (P2102)2000 Q25267Observed
Relationship details
Provider: Wikidata · Property: P2102 · Direction: outgoing
→ Relationship name unavailable (P3071)234.62 Q20966455Observed
Relationship details
Provider: Wikidata · Property: P3071 · Direction: outgoing
→ Relationship name unavailable (P2868)trace metalObserved
Relationship details
Provider: Wikidata · Property: P2868 · Direction: outgoing · Entity ID: Q7831165
→ Relationship name unavailable (P2101)1446 Q25267Observed
Relationship details
Provider: Wikidata · Property: P2101 · Direction: outgoing
→ Relationship name unavailable (P1931)0151Observed
Relationship details
Provider: Wikidata · Property: P1931 · Direction: outgoing
→ Relationship name unavailable (P274)CuOObserved
Relationship details
Provider: Wikidata · Property: P274 · Direction: outgoing
→ Relationship name unavailable (P2670)oxygenObserved
Relationship details
Provider: Wikidata · Property: P2670 · Direction: outgoing · Entity ID: Q629
→ Relationship name unavailable (P3078)-156.06 Q752197Observed
Relationship details
Provider: Wikidata · Property: P3078 · Direction: outgoing
→ Relationship name unavailable (P3335)copper(II) oxide exposureObserved
Relationship details
Provider: Wikidata · Property: P3335 · Direction: outgoing · Entity ID: Q21174097
→ Relationship name unavailable (P3071)42.59 Q20966455Observed
Relationship details
Provider: Wikidata · Property: P3071 · Direction: outgoing
→ Relationship name unavailable (P3078)306.27 Q752197Observed
Relationship details
Provider: Wikidata · Property: P3078 · Direction: outgoing
→ Relationship name unavailable (P2054)6.4 Q13147228Observed
Relationship details
Provider: Wikidata · Property: P2054 · Direction: outgoing
→ Relationship name unavailable (P589)monoclinic-prismaticObserved
Relationship details
Provider: Wikidata · Property: P589 · Direction: outgoing · Entity ID: Q13364114
→ Relationship name unavailable (P2119)0 Q6859652Observed
Relationship details
Provider: Wikidata · Property: P2119 · Direction: outgoing
→ Relationship name unavailable (P2129)100 Q21077820Observed
Relationship details
Provider: Wikidata · Property: P2129 · Direction: outgoing
→ mass (P2067)78.924512 Q483261Observed
Relationship details
Provider: Wikidata · Property: P2067 · Direction: outgoing
← Relationship name unavailable (P828)copper(II) oxide exposureObserved
Relationship details
Provider: Wikidata · Property: P828 · Direction: incoming · Entity ID: Q21174097

External identifiers (2)

→ image (P18)CopperIIoxide.jpgObserved
Relationship details
Provider: Wikidata · Property: P18 · Direction: outgoing
→ Commons category (P373)Copper(II) oxideObserved
Relationship details
Provider: Wikidata · Property: P373 · Direction: outgoing

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