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The second speculation is the most likely the one since in the 1937 edition of Hackh's Chemical Dictionary "platinum policeman," defined as "a platinum-iridium claw that fits over a glass rod and is used to hold a quantitative filter during ignition," [2] which the purpose of the policeman was to prevent the escape of stray filter paper from ...
XDrawChem is a free software program for drawing chemical structural formulas, available for Unix and macOS. It is distributed under the GNU GPL. In Microsoft Windows this program is called WinDrawChem. [1]
This glossary of chemistry terms is a list of terms and definitions relevant to chemistry, including chemical laws, diagrams and formulae, laboratory tools, glassware, and equipment. Chemistry is a physical science concerned with the composition, structure, and properties of matter , as well as the changes it undergoes during chemical reactions ...
A grater, also known as a shredder, is a kitchen utensil used to grate foods into fine pieces. They come in several shapes and sizes, with box graters being the most common. [ 1 ] Other styles include paddles, microplane/rasp graters, and rotary drum graters.
Chemical structures and reaction schemes should conform to the following: Images should be drawn with a molecule editor, never freehand; ACS settings should be used for both structures and reaction schemes. These settings are normally available as templates in chemical drawing programs. Use sans-serif fonts like Arial.
The tool on the right is also called a dough cutter. In American English, spatula refers broadly to a number of broad, flat utensils. The word commonly refers to a turner or flipper (known in British English as a fish slice ), used to lift and flip food items during cooking, such as pancakes and fillets .
Although many household owners keep a grater in their kitchen, it might not be the most used utensil of the bunch. However, encorporating the techique of grating into your cooking is an excellent ...
ACD/ChemSketch allows for both basic structure drawing and importation of 3D and 2D .MDL files from other molecular modelling programs. ChemSketch has been favorably compared to other molecular modelling software, especially ChemDraw, based on its ability to display a wide range of structural components and the ease of creating complex structures quickly.