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单词 Chemical equations
释义

Chemical equations

原声例句
Crash Course 综合篇

We can use the coefficients from the balanced chemical equation to fill in the number of moles for each substance.

我们可以使用平衡化学方程式中的系数来填充每种物质的摩尔数。

化学 Crash Course

Equilibrium constants are easy to set up but hard to explain, so let's start with an example using this obviously fake chemical equation.

平衡常数很容易建立,但很难解释,所以让我们从一个例子开始,使用这个明显虚假的化学方程式。

Crash Course 综合篇

On the R line at the top of the table, we write the chemical equation of reaction, leaving space between each part so we'll have room to add more information below.

在表格顶部的 R 行, 我们写下了反应的化学方程式,在每个部分之间留有空间, 以便我们有空间在下面添加更多信息。

Crash Course 综合篇

We also learned how to calculate molar mass and how to balance a chemical equation and finally, we talked about how to use molar ratios to calculate the amount of stuff that goes in and out of a reaction.

我们还学习了如何计算摩尔质量以及如何平衡化学方程式, 最后,我们讨论了如何使用摩尔比来计算进出反应的物质的量。

中文百科

化学方程序 Chemical equation

(重定向自Chemical equations)

化学方程序化学反应方程序(Chemical equation)是用来描述各种物质之间的不同化学反应的式子。

化学方程序反映的是客观事实。因此书写化学方程序要遵守两个原则:一是必须以客观事实为基础,绝不能凭空臆想、臆造事实上不存在的物质和化学反应;二是要遵守质量守恒定律,等号两边各原子种类与数目必须相等。

英语百科

Chemical equation 化学方程式

(重定向自Chemical equations)
As seen from the equation CH4 + 2 O2 → CO2 + 2 H2O, a coefficient of 2 must be placed before the oxygen gas on the reactants side and before the water on the products side in order for, as per the law of conservation of mass, the quantity of each element does not change during the reaction
P4O10 + 6 H2O → 4 H3PO4This chemical equation is being balanced by first multiplying H3PO4 by four to match the number of P atoms, and then multiplying H2O by six to match the numbers of H and O atoms.

A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side. The coefficients next to the symbols and formulae of entities are the absolute values of the stoichiometric numbers. The first chemical equation was diagrammed by Jean Beguin in 1615.

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更新时间:2025/6/21 16:05:35