In chemistry, an alkali (/ ˈ æ l k ə l aɪ /; from the Arabic word al-qāly, القلوي) is a basic, ionic salt of an alkali metal or an alkaline earth metal. An alkali can also be defined as a base that …

Alkali, any of the soluble hydroxides of the alkali metals—i.e., lithium, sodium, potassium, rubidium, and cesium. Alkalies are strong bases that turn litmus paper from red to blue; they …

The meaning of ALKALI is a soluble salt obtained from the ashes of plants and consisting largely of potassium or sodium carbonate; broadly : a substance (such as a hydroxide or carbonate of …

2023年8月29日 · The alkali metals are a group of elements in the periodic table with similar properties: They are all shiny, silvery-white, highly reactive metals. The alkali metals are …

2025年1月31日 · Alkali metal, any of the six elements of Group 1 (Ia) of the periodic table—lithium, sodium, potassium, rubidium, cesium, and francium. The alkali metals are so …

An alkali is where a base is dissolved in water. Often it is the salt of an Alkali metal. An alkali is the opposite to an acid and can be neutralized (brought down to pH seven) by adding acid.

alkali, Inorganic compound, any soluble hydroxide (―OH) of the alkali metals: lithium, sodium, potassium, rubidium, and cesium. More broadly, ammonium hydroxide ( see ammonia ) and …

The alkali metals, also known as the alkali metal family is a group of six elements characterized by common physical and chemical properties, a similar electron configuration, and shared …

Alkali is an ionic salt that produces hydroxide ions when dissolved in water. Alkali metals react vigorously with water and produce hydroxides. Alkalis are basic. Alkali can be defined as the …

2024年9月24日 · Alkali metals are defined as a group of elements in the periodic table that share similar properties, characterized by their highly reactive nature and tendency to lose their …