N a chemical formula indicating the numbers and types of atoms in a molecule 分子式 → compare empirical formula, structural formula
HSO is the molecular formula of sulphuric acid
Similarly, molecular formulas have to have subscripts after the element name, not before.
类似的，分子式中的下标是在元素符号后边的，而不是前边。
On the left of the equation we write the molecular formulas of all the ingredients or reactants.
在反应式的左侧我们写上全部反应物的分子式。
Substances which have identical molecular formulas but different strucural formulas, are known as isomers.
凡具相同分子式但不同结构式的物质称为异构体。
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