Alexa, the voice service that powers Echo, provides capabilities, or skills, that enable customers to interact with devices in a more intuitive way using voice. Examples of these skills include the ability to play music, answer general questions, set an alarm or timer and more.
1 Water can dissolve salt because the positive part of water molecules attracts the negative chloride ions and the negative part of water molecules attracts the positive sodium ions. 2  The amount of a substance that can dissolve in a liquid (at a particular temperature) is called the solubility of the substance.
Evaporated salt is the purest form of sodium based salts that can be used for softening water. This type of salt is dissolved from its raw state and then converted back into sodium chloride by extracting all the moisture using heat. What is left is 100% pure salt that is very effective in treating hard water.