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反应化学计量
A balanced chemical equation provides a great deal of information in a very succinct format. Chemical formulas provide the identities of the…
限量反应物
The relative amounts of reactants and products represented in a balanced chemical equation are often referred to as stoichiometric amounts. However,…
反应收率
The theoretical yield of a reaction is the amount of product estimated to form based on the stoichiometry of the balanced chemical equation. The…
溶液的一般属性
Many common substances around us exist as a solution, such as ocean water, air, and gasoline. All solutions are mixtures of substances that are…
溶液浓度和稀释
The relative amount of a given solution component is known as its concentration. Often, though not always, a solution contains one component with a…
电解质溶液和非电解质溶液
Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a…
离子化合物的溶解度
Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure.…
水溶液中的化学反应
Chemical substances interact in many different ways. Certain chemical reactions exhibit common patterns of reactivity. Due to the vast number of…
沉淀反应
In a precipitation reaction, aqueous solutions of soluble salts react to give an insoluble ionic compound – the precipitate. The reaction…
氧化还原反应
Earth’s atmosphere contains about 20% molecular oxygen, O2, a chemically reactive gas that plays an essential role in the metabolism of…
氧化数
In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the…
酸、碱与中和反应
An acid-base reaction is one in which a hydrogen ion, H+, is transferred from one chemical species to another. Such reactions are of central…
合成与分解反应
Synthesis and decomposition are two types of redox reactions. Synthesis means to make something, whereas decomposition means to break something. The…
轻度乙醇萃取高β-o-4 的木质素及其对解聚产率的影响
Lignin valorization strategies are a key factor for achieving more economically competitive biorefineries based on lignocellulosic biomass. Most of…
制造简单、廉价的土壤表面温度和重力含水量传感器
Quantifying temperature and moisture at the soil surface is essential for understanding how soil surface biota respond to changes in the environment.…
<em>原位</em>燃烧试验方法: 原油可燃性和燃烧效率
A new method for the simultaneous study of the flammability and burning efficiency of fresh and weathered crude oil through two experimental…

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