Urine has the color of pale yellow to deep amber. It is odorless and has a pH of 4.5-8.0
Answer:
The process of dissolving can be endothermic (temperature goes down) or exothermic (temperature goes up).
When water dissolves a substance, the water molecules attract and “bond” to the particles (molecules or ions) of the substance causing the particles to separate from each other.
The “bond” that a water molecule makes is not a covalent or ionic bond. It is a strong attraction caused by water’s polarity.
It takes energy to break the bonds between the molecules or ions of the solute.
Energy is released when water molecules bond to the solute molecules or ions.
If it takes more energy to separate the particles of the solute than is released when the water molecules bond to the particles, then the temperature goes down (endothermic).
If it takes less energy to separate the particles of the solute than is released when the water molecules bond to the particles, then the temperature goes up (exothermic).
Explanation:
Answer:
Ans- It will decrease as the charge travels towards the electrical field.
Explanation:
Ans- It will decrease as the charge travels towards the electrical field.
As we have learn, F= qE i.e. the electrical field will exert a force on the positively charged in the direction of the electrical field, this will accelerate the positive charge resulting in the conversion of potential energy into kinetic energy.
Answer:
4.79 ^ 10^-3.
Explanation:
pH = - log [H3O+} = 2.32
The log is to the base 10.
So concentration of H3O+ is found by finding the antilogarithm of -2.32 ( that is 10^-2.32 ):
= 4.79 ^ 10^-3.
