Chemistry questions This is a list of recently added questions about chemistry. Play chemistry quiz and see all the questions. How many patents was Marie Curie granted?None. Marie and Peter Curie refrained from patenting their newly developed methods to let the humanity benefit from these inventions. Created by: smyruvery hard 33% sevenseven239twotwo970oneone76nonenone648physics riddles » How can you cut a diamond?Using a diamond. Diamond is a hardest substance in the world and hence as a very strong bonding between the atoms. hence it can be cut only by using a diamond Created by: Shruthi Srinivasaneasy 78% using a knifeusing a knife64using a diamondusing a diamond4039using goldusing gold177using a gasusing a gas852materials riddles » What is the chemical formula of dry ice also known as cardice?CO₂. Dry ice is the solid form of carbon dioxide. In temperatures above −78.5 °C (−109.3 °F) it will not melt but sublimate, that means transforming straight from solid form into gas one without liquid phase.Created by: Justa87hard 45% H₂OH₂O518CO₂CO₂1682CH₄CH₄623HCOOHHCOOH843nature riddles » What is dry ice?Solidified CO2. Dry ice is used in refrigeration. It has an interesting property: it maintains a constant temperature of -78.5C in a warmer environment. This is because dry ice does not melt and sublimes directly into the gaseous form.Created by: Niezgodnavery easy 92% glacierglacier440solidified CO2solidified CO212023legendary alchemical substancelegendary alchemical substance286meringue dessertmeringue dessert188ice riddles » Which substance is the most bitter?Denatonium benzoate. Denatonium, usually available as denatonium benzoate and as denatonium saccharide, is the most bitter chemical compound known, with bitterness thresholds of 0.05 ppm for the benzoate and 0.01 ppm for the saccharide.Created by: Bartoszhard 43% salicinsalicin636absintheabsinthe1540denatonium benzoatedenatonium benzoate2375benzoic acidbenzoic acid862cuisine riddles » What is the chemical symbol of mercury?Hg. The Latin name of mercury is "hydrargyrum" (meaning liquid silver - quicksilver), hence the symbol Hg. Ru is the chemical symbol of ruthenium, Rh - rhodium, Mt - meitnerium.Created by: globalquiz.orgvery easy 83% RuRu256RhRh594HgHg4835MtMt79chemical elements riddles » What is the chemical symbol of manganese?Mn. Mg is the chemical symbol of magnesium. Mo is the chemical symbol of molybdenum.Created by: globalquiz.orgvery easy 80% MgMg620MoMo66MnMn3819MaMa260chemical elements riddles » What is the chemical symbol of tin?Sn. The Latin name of tin is "stannum", hence the symbol Sn. Ti is the chemical symbol of titanium. Sb is the chemical symbol of antimony.Created by: globalquiz.orgvery easy 86% TiTi248TT167SnSn4247SbSb254chemical elements riddles » What is the chemical symbol of silver?Ag. The Latin word for silver is "argentum", hence the symbol Ag. S is the chemical symbol of sulfur, Si - silicon, Au - gold.Created by: globalquiz.orgeasy 77% SS85SiSi170AuAu803AgAg3744chemical elements riddles » What is the chemical symbol of lead?Pb. The Latin name of lead is "plumbum", hence the symbol Pb. La is the chemical symbol of lanthanum, O - oxygen, Db - dubnium.Created by: globalquiz.orgvery easy 94% LaLa100PbPb4748OO158DbDb45chemical elements riddles » Play chemistry quiz and see all the questions.