What is analytical chemistry? Analytical chemistry is the science of obtaining, processing, and communicating information about the composition and structure of matter. In other words, it is the art and science of determining what matter is and how much of it exists. Analytical chemistry can be a challenging profession that makes significant contributions to many fields of … [Read more...] about Analytical Chemistry
Chemistry - English
Cha đẻ pin Lithium đến Việt Nam, chia sẻ thứ nhiều người hiểu sai về pin
(Dân trí) - GS. Stanley Whittingham hiện đang có mặt ở Việt Nam với tư cách là khách mời danh dự của VinFuture 2023 - một trong những giải thưởng khoa học quốc tế tầm cỡ bậc nhất tại Việt Nam và trên thế giới. Nếu bạn đang đọc bài viết này bằng một thiết bị di động, chẳng hạn như smartphone hay laptop, thì nhiều khả năng bạn cũng đang sử dụng thành quả từ công trình nghiên … [Read more...] about Cha đẻ pin Lithium đến Việt Nam, chia sẻ thứ nhiều người hiểu sai về pin
Lesson Explainer: Dynamic Equilibrium
Lesson Explainer: Dynamic Equilibrium In this explainer, we will learn how to define a dynamic equilibrium and examine how one can be established. Let us consider the following reversible chemical reaction: At the very start of the reaction, the concentration of nitrogen and hydrogen gas is high, while the concentration of ammonia is zero as it has not yet been … [Read more...] about Lesson Explainer: Dynamic Equilibrium
sulfur
sulfur (S), also spelled sulphur, nonmetallic chemical element belonging to the oxygen group (Group 16 [VIa] of the periodic table), one of the most reactive of the elements. Pure sulfur is a tasteless, odourless, brittle solid that is pale yellow in colour, a poor conductor of electricity, and insoluble in water. It reacts with all metals except gold and platinum, forming … [Read more...] about sulfur
The metal and its alloys
The metal and its alloys The world’s consumption of zinc falls into five areas. The most important use, approaching 50 percent, is in the corrosion protection of iron and steel. About 15 to 20 percent is consumed both in brass alloys and cast-zinc alloys, and 8 to 12 percent is used both in wrought alloys and in miscellaneous uses such as chemicals and zinc … [Read more...] about The metal and its alloys