The molecule of an element can be represented using a chemical formula by stating the symbol of the single type of atom present in it, along with its count. For instance, the molecule of chlorine (Cl) has two atoms. Therefore, it is represented by the chemical formula Cl2. The molecule ...
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Noun1.chemical formula- a representation of a substance using symbols for its constituent elements formula statement- a message that is stated or declared; a communication (oral or written) setting forth particulars or facts etc; "according to his statement he was in London on that day" ...
_chemical_formula_项目指定化合物的组成和化学性质。分子式数据项必须与指定密度、晶胞和Z值的数据项一致。以下规则适用于数据项_chemical_formula_analytical、*_structural和*_sum的构造。对于数据项*_moiety,分子式构造被分解为残基或部分,即形成分子单元或分子离子的原子组。下面给出的规则适用于每个部分,但不同的...
Want to thank TFD for its existence?Tell a friend about us, add a link to this page, or visitthe webmaster's page for free fun content. Link to this page: Facebook Twitter Full browser? ▲ chemical engineering Chemical Engineering & Materials Science ...
The Roels formula is an elemental formula normalized by carbon (Table 3.1). For example, penicillin V is represented by CH1.125O0.25N0.125S0.0625. Table 3.1. Chemical Species and Their Representation Chemical species: chemical compound, element, or living system Water; nitrogen; corn; E. coli...
13,chemicalformula:elementsymbolstorepresentthematerial composition. 14.Relativeatomicmass:thevalueofthemassofacarbonatom asthestandard,andthemassofotheratomsascomparedwith thatof1/12 Therelativeatomicmassofanatom= Therelativeatomicmassistheprotonnumber+neutronnumber ...
Thechemicalformula for water is H 2 O. 水的化学分子式是H 2O. 《简明英汉词典》 Thechemicalfertilizer should be well dug in. 化学肥料应该均匀地混入土壤中. 《简明英汉词典》 The soil has been poisoned withchemicalwaste from the factory. ...
to make fertile.He fertilized his fields with manure;An egg must be fertilized before it can develop.fertilizar ˌfertiliˈzation,ˌfertiliˈsationnoun fertilización ˈfertilizer,ˈfertiliser(-ti-)noun a substance (manure, chemicalsetc) used to make land (more) fertile.fertilizante,abo...
It's easier to navigate the periodic table and write chemical equations and formulae once you know what all of the element abbreviations are. However, sometimes it's easy to confuse symbols of elements with similar names. Other elements have symbols that don't seem to relate to their names ...