They can be found in salts, and can therefore be extracted from those salts.
For example, kitchen-salt contains sodium.
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Yes, a reaction is: NaOH + HCl = NaCl + H2O
Bases are not called alkalis. Alkalis are a specific subset of bases that are soluble in water. All alkalis are bases, but not all bases are alkalis.
Acids and alkalis with a high pH (1 or 2 for acids and 14 or 15 for alkalis) can be dangerous, like hydrochloric acid which can cause damage to the skin if contact with the acid is made. Acids and alkalis with a low pH (5 for acids and 11 for alkalis) aren't dangerous, as vinegar is an acid with that pH and toothpaste is an alkali.
maybe
All alkalis are soluble in water.
alkalis are corrosive, normally water soluble and are very soapy.
Yes alkalis and acids can be transported by road.
They are alkalis, such as sodium carbonate, used by industries, such as glassmakers.
Yes, acids neutralize alkalis and inverse.
When acids react with alkalis, they undergo a neutralization reaction to form salt and water. This process involves the transfer of protons from the acid to the alkali, resulting in the formation of a salt and water as the products.
Copper doesn't react wih alkalis.