AP BIOLOGY

BIOCHEMISTRY

PROPERTIES OF WATER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Water dissolves salt because
A
it has cohesion
B
it is hidrogenoxide
C
it is a supersolvent
D
it has surface tension
Explanation: 

Detailed explanation-1: -Water is a supersolvent, so it has the power to dissolve materials like no other substance. To find out more about what water can do, you can test many properties of water right in your own kitchen.

Detailed explanation-2: -At the molecular level, salt dissolves in water due to electrical charges and due to the fact that both water and salt compounds are polar, with positive and negative charges on opposite sides in the molecule.

Detailed explanation-3: -Salt is dissolved in water to form salt-water. Here salt is present as a solute and water as a solvent. Salt-water is the solution.

Detailed explanation-4: -Salt dissolved in water is a solution. The major component of a solution, called the solvent, is typically the same phase as the solution itself. Each minor component of a solution (and there may be more than one) is called the solute.

Detailed explanation-5: -For example salt dissolving in water is usually considered to be a physical change, however the chemical species in salt solution (hydrated sodium and chlorine ions) are different from the species in solid salt.

There is 1 question to complete.