8th grade

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rust is to iron as ___ is to silver

  • 8th grade -

    Not much to go on but I would guess perhaps silver oxide?
    Rust is iron oxide.

  • 8th grade -

    I don't know if this is silver oxide -- but tarnish could also fit in that blank.

  • 8th grade -

    'patina' is the word for the discolouration on silver.

    I haven't seen this question for over 30 years - definitely recycling!

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