The most difficult metals riddles A list of metals related questions that are most often answered incorrectly Chemistry quiz If a gun bullet was made of gold, what properties would it have?Armor-piercing. The density of gold is 19,320 kg/m3, which is higher than of uranium (18,800) and much higher than of lead (11,340). The armor-piercing ammo is made of uranium for its high density - golden bullets would work for this purpose even better.very hard 37% it would be uselessit would be useless29%explosiveexplosive5%armor-piercingarmor-piercing37%similar in its properties to a lead bulletsimilar in its properties to a lead bullet27%Created by: Cleo. Statistics based on 5436 answers in 2 languages »guns riddles » What is brass composed of?Copper and zinc. Brass is us used for musical instruments such as horns and bells for its acoustic properties and high malleability. One type of brass, called Prince's metal (75% copper, 25% zinc), is used as an imitation of gold due to its beautiful yellow color.hard 40% copper and ironcopper and iron16%copper and tincopper and tin34%copper and zinccopper and zinc40%copper and leadcopper and lead9%Created by: Kasia. Statistics based on 7599 answers in 2 languages »alloys riddles » Which naturally occuring chemical element is the densest?Osmium. The density of osmium is 22,570 kg/m3, slightly more than Iridium (22,420) and platinum (21,450). Commonly used metals are considerably less dense - the density of iron is 7,870, lead 11,340 and mercury 13,456.hard 51% heliumhelium4%leadlead25%osmiumosmium51%platinumplatinum18%Created by: globalquiz.org. Statistics based on 4968 answers in 2 languages »chemical elements riddles » Which metal is resistant to all acids?Tantalum. Noble metals such as gold, platinium and palladium can be dissolved in aqua regia, a highly concentrated mixture of hydrochloric acid and nitric acid. Silver is soluble in pure nitric acid. Ruthenium can be dissolved in aqua regia only when in the presence of oxygen, while rhodium must be in a fine pulverized form. Niobium and tantalum are resistant to all acids, including aqua regia.hard 51% GoldGold15%SilverSilver3%PlatiniumPlatinium28%TantalumTantalum51%Created by: Sumit Tamang. Statistics based on 3537 answers in 2 languages »chemistry riddles » When and where was the idea of gold, silver and bronze medals for sport event competitors introduced?1904 Summer Olympics, St. Louis. The choice of metals comes from the first three Ages of Man in Greek mythology: the Golden Age, when men lived among the gods; the Silver age, where youth lasted a hundred years; and the Bronze Age, the era of heroes.average 61% 10th century BC, Ancient Greece10th century BC, Ancient Greece15%3rd century AD, Ancient Rome3rd century AD, Ancient Rome12%1904 Summer Olympics, St. Louis1904 Summer Olympics, St. Louis61%1936 Summer Olympics, Berlin1936 Summer Olympics, Berlin10%Created by: Kasia. Statistics based on 8139 answers in 2 languages »Olympic Games riddles » What material are church bells made of?Bronze. The traditional metal for church bells is a bronze of about 23% tin. Steel was tried during the busy church-building period of mid-19th-century England, for its economy over bronze, but was found not to be durable.easy 71% cast ironcast iron10%coppercopper14%bronzebronze71%ceramicsceramics2%Created by: globalquiz.org. Statistics based on 4939 answers in 2 languages »churches riddles » Play chemistry quiz and see all the questions.