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根据化学方程式计算的题型虽然较多,但解题步骤和方法基本相同,只要注意在计算时,化学方程式一定要配平,如有不纯物质的质量,必须换算成纯物质的质量才能代入方程式列列比例式计算,根据化学方程式计算的基本要领可表述为: 方程式、关系量,计算依据不能忘。 已名、未知是条件,条件对准关系量, 左右相比列比例,求出未知是目的。
Although there are many types of questions calculated according to the chemical equations, the procedures and methods for solving problems are basically the same, as long as attention is paid to the calculation, the chemical equations must be balanced. If there is any impure substance quality, it must be converted into the mass of pure substances to be substituted into the equations. The calculation of the ratios listed in series, according to the basic principle of the calculation of chemical equations can be expressed as: Equation, relationship, calculation basis can not be forgotten. Known and unknown conditions are conditions, and the conditional alignment relationship is relative to the column ratio, and finding the unknown is the purpose.