Which molecule is most soluble in water? What is the molecular formula for methanol? What is iso in organic chemistry? What are the 4 colligative properties? What is the name of the molecular compound BF3? What are some pure substances?
What are some pure substances? Which is a substance that is made up of only one type of atom? What chemical element is Cs? Which pure substance can be classified as an element? What is an electrode in chemistry? What is a covalent bond in chemistry? What is J in physical chemistry? I...
Chemical substances can therefore be either a pure chemical element or a pure chemical compound. This definition and interpretation is generally considered sufficient for school-level, incl GCSE Chemistry. There are, however, some other definitions e.g. "A form of matter that has both definite...
Overview of Chemistry Terms The scientific study of matter's characteristics and behaviour is known as chemistry. Chemistry vocabulary and Chemistry glossary are different from the normal vocabulary. It is a branch of natural science that examines the building blocks of matter, including the atoms, m...
These different types of mixtures are interesting but might not be essential knowledge for GCSE Chemistry. The descriptions are non-technical (omitting details, e.g. of particle sizes), but sufficient for general comparison.The substances of which a mixture is formed can sometimes be identified ...
This article presents a personal answer to the question “What is chemistry?”, set out in terms of six propositions. These cover “pureR
The double definition of elements proposed by the International Union for Pure and Applied Chemistry contrasts an abstract meaning and an operational one. Nevertheless, the philosophical aspects of this notion are not fully captured by the IUPAC definitions, despite the fact that they were crucial ...
Sublimation in chemistry refers to the phase transition in which matter changes state from a solid immediately into a gas, without passing through an intermediate liquid phase. Sublimation occurs when atmospheric pressure is too low for a substance to ex
In fact, human’s activity in chemistry goes back to prerecorded times. As the quotation at the head of chapter indicates, chemists are involved in two different types of activity. Some chemists investigate the natural world and try to understand it, while other chemists create new substances ...
Ethanol in water Air Soda Salt and pepper Solutions, colloids, suspensions Examples That Are Not Mixtures Baking soda and vinegar Borax and glue to make slime Combining hydrochloric acid (HCl) and sodium hydroxide (NaOH) Classification of Mixtures ...