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.
They are still a bit like the materials that make them up. For example, sodium chloride (salt) and water are both compounds. They mix together when salt dissolves in water to form salt solution. A solution of salt in water is sometimes called brine. Salt solution is a mixture not a compound. It still has the liquid properties of water and the taste of salt. We can fairly easily separate the salt and water from each other.