Why do water level decrease when you pour salt in the water?

Answer 1

The volume of the solution will NOT be the same after salt is dissolved. In fact, in a saturated solution of NaCl, the volume actually goes DOWN slightly. The explanation is too complex for this discussion. Some salts will increase the volume. You may not notice the change, and it will depend on the amount of salt added. The more salt, the greater will be the change in volume.

Answer 2

Because the salt dissolves into the water rather than displacing it. In other words the density of the salt water is greater than the fresh water. Remember density is mass per unit volume, so by dissolving the salt into the water you are increasing the mass at constant volume.

Answer 3

When salt is added to water, it dissolves and increases the density of the water. This increased density causes the water level to decrease because the volume of water displaced by the added salt is less than the volume of water the salt occupies when dissolved.

Answer 4

Since the salt becomes part of the water, and doesn't take up space in the water, the water level doesn't change.

Answer 5

Because the salt falls apart in chloride and natrium ions, that settle in the free spaces between the water molecules.

Answer 6

Because the salt is absorbed the water, and the salt also takes up less volume than water does, so the water level will decreased..

Answer 7

Because ONE spoon full in to a BIG pool is not enough and it droppes to the bottom

Answer 8

The level of water remain unchanged.

Answer 9

This is because the NaCl or sodium chloride or salt molecules occy the spaces between the water molecules.