Search results
Results from the WOW.Com Content Network
General chemistry (sometimes referred to as "gen chem") is offered by colleges and universities as an introductory level chemistry course usually taken by students during their first year. [1] The course is usually run with a concurrent lab section that gives students an opportunity to experience a laboratory environment and carry out ...
This Wikipedia page provides a comprehensive list of boiling and freezing points for various solvents.
This list is sorted by boiling point of gases in ascending order, but can be sorted on different values. "sub" and "triple" refer to the sublimation point and the triple point, which are given in the case of a substance that sublimes at 1 atm; "dec" refers to decomposition. "~" means approximately.
Key stage 2 (KS2) covers years 3, 4, 5 and 6 of compulsory school education in the National Curriculum. It is the longest stage of compulsory school education in England. Children are typically in the age range 7–11. The National Curriculum divides KS2 into lower KS2 (years 3 and 4) and upper KS2 (years 5 and 6).
Powdered potassium sulfide anhydrous. Potassium sulfide is an inorganic compound with the formula K 2 S.The colourless solid is rarely encountered, because it reacts readily with water, a reaction that affords potassium hydrosulfide (KSH) and potassium hydroxide (KOH).
Matter organizes into various phases or states of matter depending on its constituents and external factors like pressure and temperature.In common temperatures and pressures, atoms form the three classical states of matter: solid, liquid and gas.
Until 2014, the Standard Grade section of the site had 12 subjects: Biology, History, Chemistry, Computing Studies, Maths, English, Modern Studies (a course exclusive to Scotland), French, Physical Education, Geography, and Physics. [9] The site was updated in 2014 to replace the Standard Grade section with National 4 and National 5 sections.
Chemistry is the scientific study of the properties and behavior of matter.It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.