书写分子式注意事项张巧仙分子式是物质的代号，重要的化学用语之一。分子式简明准确地反映着物质的组成、结构等，研究物质，必须掌握其分子式。分子式是世界语，也是书写化学反应方程式和电离方程式等都离不开的基础，因此，掌握好分子式至关重要。那么，如何正确书写分... Writing molecular formula Note Zhang Qiao Xian molecular formula is the material code, one of the important chemical terms. Molecular formula concisely and accurately reflects the composition of the material, structure, etc., to study the material, we must master the molecular formula. Molecular formula is Esperanto, but also writing chemical reaction equation and ionization equation are inseparable from the foundation, therefore, master the formula is essential. So, how to write the correct points ...