--- title: Tarnish and how metals change — the lesson's questions with trees and pragmatics · Chemistry description: The 14 test and exam questions of lesson 14 «Tarnish and how metals change» of the chemistry course of Mova's primary school, each with its options, Mova's choice and the right answer, every sentence with its dependency tree and pragmatics. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Chemistry](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/) / Tarnish and how metals change # Tarnish and how metals change The 14 questions of lesson 14 «Tarnish and how metals change» of the chemistry course of Mova's primary school with their options, 78 sentences, every one parsed by Mova with its syntax tree and pragmatics. How the student did on them: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/chemistry/14-tarnish-and-how-metals-change/). - [t1](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/t1/) — "my mate says cola dissolves a tooth overnight, legit?" — right ✓ · ★ - [t2](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/t2/) — Grandma's silver teapot is dark; Mia wants to scrub hard with polish every week. What's the catch? — wrong ✗ · ★ - [t3](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/t3/) — A statue of a dog in the park has a shiny nose but dark ears. Why? — wrong ✗ · ★ - [t4](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/t4/) — Jake: "gold's dead old on that frame but it's still shiny, someone must polish it". What's the truth? — right ✓ · ★ - [t5](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/t5/) — Your sister's new ring turns her finger green. She panics: "am I poisoned??" — right ✓ · ★ - [t6](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/t6/) — If you stored silver forks in a box with rubber bands and boiled eggs, what would happen? — wrong ✗ · ★ - [t7](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/t7/) — In a cartoon, a scientist leaves a lump of sodium on the desk and goes for lunch. What would really happen? — right ✓ · ★ - [t8](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/t8/) — "dropped vinegar on me dad's fancy knife and it got dark spots. is it ruined?" What's going on? — wrong ✗ · ★ - [t9](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/t9/) — Which object would you expect to look the same after a hundred years in a church? — wrong ✗ · ★ - [t10](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/t10/) — Teacher: "a cut apple and a cut bit of metal both change in air". What makes both happen? — right ✓ · ★ - [e1](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/e1/) — Identify the principal cause of the darkening of silver tableware in ordinary domestic conditions. — wrong ✗ · exam - [e2](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/e2/) — Which of the following statements most accurately characterises the chemical behaviour of gold in air? — right ✓ · exam - [e3](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/e3/) — It is given that a ring containing copper produces a green mark upon the skin of its wearer. Select the response consistent with the established facts. — right ✓ · exam - [e4](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/14-tarnish-and-how-metals-change/e4/) — Determine which of the following assertions concerning cola is consistent with the established facts. — wrong ✗ · exam - ← previous: [13. Rust: iron's slow fire](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/13-rust-irons-slow-fire/) - next →: [15. Acids in the kitchen](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/15-acids-in-the-kitchen/) - ↑ back to [Chemistry](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/)