Salt, as well as any other soluble substance, dissolves quicker in hot water because heat makes the water molecules move faster, creating more space between them. This extra space means the salt molecules more readily make contact with the water molecules, binding to them and creating a solution.Know More
Salt dissolves in water because the water molecule has a negative and a positive end. Chloride ions in salt are negatively charged, while the sodium ions carry a positive charge. The charged ends of the water molecule attract the ions in the salt, breaking the salt’s crystalline formation.
When water is heated, the water molecules move quicker and farther apart. This creates more space between the water molecules, so the salt molecules can bond to them more readily. Stirring also speeds up the process by bringing the salt and water molecules into contact with each other.Learn more in Solutions & Mixtures
Sugar dissolves more quickly in hot water because the water molecules are moving at a higher rate of speed and break down the sugar more quickly. The hot water contains more kinetic energy, and the more mobile water makes the sucrose molecules in the sugar move faster as well.Full Answer >
Substances that have ionic molecules or polar molecules generally dissolve in water because water molecules have the ability to surround the those molecules completely and disperse them in solution. Non-polar molecules do not interact with water molecules and are therefore insoluble in water.Full Answer >
Since non-polar substances are held together by weak van der Waals interactions and water molecules use strong hydrogen bonds, the van der Waal interactions of non-polar substances are not strong enough to break the hydrogen bonds of the water molecules. Accordingly, the non-polar substance cannot disperse itself in water.Full Answer >
Salt does dissolve in water. Salt, chemically called sodium chloride, is made up of ionic bonds between sodium and chlorine ions. In a polar solvent such as water, the ions dissociate from one another and become surrounded by the water molecules.Full Answer >