Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.

The patina itself is actually protecting the metal, preventing corrosion, which is why bronze is often associated with marine equipment. Now patina happens naturally as moisture and air come in contact with a watch case. So, as long as the watch is not in a vacuum chamber, it should patina over time. But, this can take a while. How long is hard to say, days, weeks, months it likely depends a lot on the specific climate you are in, proximity to salt water, exposure to acid rain (really) etc. Bronze (Cu0 + Sn0) can be oxidized, by the use of specific oxidizers. For example Nitric acid will form Cu2+ ions and Sn4+ ions. YES, Bronze (Cu0 + Sn0) can be oxidized, by the use of specific oxidizers. For example Nitric acid will form Cu2+ ions and Sn4+ ions. Oxidation is a process in which a chemical substance changes because of the addition of oxygen. Oxidation describes the loss of electrons by a molecule, atom or ion. Eco-friendly and traditional methods to oxidize or patina brass and copper for jewelry or other uses. Bronze - Applications. 1 Various kinds of bronze are used in many different industrial applications. 2 Phosphor bronze is used for ships' propellers, musical instruments, and electrical contacts. Bronze and brass turn green due chemical reactions between the copper in those alloys and the atmosphere. The green is most often copper carbonate. This coloring is called a Patina or Verdigris and can be used intentionally (see the Statue of Li... Bronze - Technical information. 1 There are many different bronze alloys, but typically modern bronze is 88% copper and 12% tin. [14] 2 In the Bronze Age, two forms of bronze were commonly used: classic bronze, about 10% tin, was used in casting; and mild bronze, about 6% tin, was hammered from ingots to make sheets. Bladed weapons were mostly cast from classic bronze, while helmets and armor were hammered from mild bronze. Originally Answered: Why do bronze and brass turn green? The green layer you see is called tarnish and forms when brass is exposed to the carbon and sulfur dioxides in the air. It's basically a thin layer of corrosion that forms and it can only be eliminated with a thorough cleaning which requires you to remove some of the surface and patina of the piece. But it might be logical for it to be gold-plated, as it has to do with the sun. If one were to take something of bronze and coat it with a thin layer of gold somehow (maybe just by hammering thin strips of gold around it; I don't suppose any other techniques were around in the bronze age), would that stop the bronze corroding? Patina (/ p t n / or / p t i n /) is a thin layer that variously forms on the surface of copper, bronze and similar metals (tarnish produced by oxidation or other chemical processes), or certain stones, and wooden furniture (sheen produced by age, wear, and polishing), or any similar acquired change of a surface through age and exposure. Query: how does bronze oxidize
Bronze can be oxidized, by the use of specific oxidizers.