Which gases are Strong bases
Answers
Answer:
lithium hydroxide,calcium hydroxide,Barium hydroxide and cesium hydroxide
Answer:
what is base
In chemistry, bases are substances that, in aqueous solution, release hydroxide (OH−) ions, are slippery to the touch, can taste bitter if an alkali,change the color of indicators (e.g., turn red litmus paper blue), react with acids to form salts, promote certain chemical reactions (base catalysis), accept protons from any proton donor or contain completely or partially displaceable OH− ions. Examples of bases are the hydroxides of the alkali metals and the alkaline earth metals (NaOH, Ca(OH)2, etc.—see alkali hydroxide and alkaline earth hydroxide).
In water, by altering the autoionization equilibrium, bases yield solutions in which the hydrogen ion activity is lower than it is in pure water, i.e., the water has a pH higher than 7.0 at standard conditions. A soluble base is called an alkali if it contains and releases OH− ions quantitatively. However, it is important to realize that basicity is not the same as alkalinity. Metal oxides, hydroxides, and especially alkoxides are basic, and conjugate bases of weak acids are weak bases.
General properties of bases include:
- Concentrated or strong bases are caustic on organic matter and react violently with acidic substances.
- Aqueous solutions or molten bases dissociate in ions and conduct electricity.
- Reactions with indicators: bases turn red litmus paper blue, phenolphthalein pink, keep bromothymol blue in its natural colour of blue, and turn methyl orange-yellow.
- The pH of a basic solution at standard conditions is greater than seven.
- Bases are bitter.
Uses of bases
- Sodium hydroxide is used in the manufacture of soap, paper, and the synthetic fiber rayon.
- Calcium hydroxide (slaked lime) is used in the manufacture of bleaching powder.
- Calcium hydroxide is also used to clean the sulfur dioxide, which is caused by the exhaust, that is found in power plants and factories.
Strong bases
- Lithium hydroxide LiOH
- Cesium hydroxide CsOH
- Calcium hydroxide Ca(OH) 2
- Strontium hydroxide Sr(OH) 2
- Barium hydroxide Ba(OH) 2
Explanation:
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