Base (chemistry) - Wikipedia
In chemistry, there are three definitions in common use of the word "base": Arrhenius bases, Brønsted bases, and Lewis bases. All definitions agree that bases are substances that react with acids, as originally proposed by G.-F. Rouelle in the mid-18th century.
6.1: What is an Acid and a Base? - Chemistry LibreTexts
A base is a substance that forms hydroxide ions OH-when dissolved in water. For example, hydrochloric acid (\(\ce{HCl}\)) is an acid because it forms \(\ce{H^{+}}\) when it dissolves in water. \[\mathrm{HCl}(\mathrm{g}) \stackrel{\text { Water }}{\longrightarrow} \mathrm{H}^{+}(\mathrm{aq})+\mathrm{Cl}^{-}(\mathrm{aq})\nonumber\]
What Is a Base in Chemistry? Definition and Examples
2021年6月19日 · In chemistry, a base is a substance that reacts with acids to form a salt and which releases hydroxide ions, accepts protons, or donates electrons in aqueous solution. Learn about the properties of bases and see examples of bases and their uses.
Base | Definition, Examples, & Facts | Britannica
4 天之前 · Base, in chemistry, any substance that in water solution is slippery to the touch, tastes bitter, changes the color of indicators (e.g., turns red litmus paper blue), reacts with acids to form salts, and promotes certain chemical reactions (base catalysis).
Examples Of Bases - Definition, Types and Properties of Base
A base is a substance that can neutralize the acid by reacting with hydrogen ions. Most bases are minerals that react with acids to form water and salts. Bases include the oxides, hydroxides and carbonates of metals. The soluble bases are called alkalis. Sodium hydroxide is an alkali.
14.3: Bases: Properties and Examples - Chemistry LibreTexts
Bases have properties that mostly contrast with those of acids. Aqueous solutions of bases are also electrolytes. Bases can be either strong or weak, just as acids can.
Acids and Bases - Definition, Examples, Properties, Uses with …
Acids and Bases Definition. An acid is any hydrogen-containing substance that is capable of donating a proton (hydrogen ion) to another substance. A base is a molecule or ion able to accept a hydrogen ion from an acid. Acidic substances are usually identified by their sour taste.
Overview of Acids and Bases - Chemistry LibreTexts
2023年1月30日 · In chemistry, acids and bases have been defined differently by three sets of theories. One is the Arrhenius definition, which revolves around the idea that acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (H +) ions while bases produce hydroxide (OH -) ions in solution.
Base Definition in Chemistry - ThoughtCo
2022年9月29日 · In chemistry, a base is a chemical species that donates electrons, accepts protons, or releases hydroxide (OH-) ions in aqueous solution. Bases display certain characteristic properties that can be used to help identify them.
Bases - Definition, Types, Examples, Properties, Uses
2024年9月3日 · Bases are substances that taste bitter and feel slippery when touched. In chemistry, they are known for turning red litmus paper blue and are commonly found in household items like baking soda and soap. Bases react with acids to …