one fable-low hijack cell
pair oxidation / rust
envelope en_bare_or
ordering AB
effort low
Bare English 'or' — '{X} or {Y}'
verdictpicked rust (second-offered)
· classifierB
· tiernone
response (200 chars)
"Rust" could mean a couple of things — here's a quick take on both:
## Rust (the chemical process)
Rust is iron oxide, formed when iron reacts with oxygen and water:
**4Fe + 3O₂ + 6H₂O → 4Fe(OH)₃**
neighbors