1) Name two processes from which it may be concluded that the particles of a gas move
continuously.
2) What happens if you put copper sulphate crystals in water?
3) What is meant by concentration of a solution?
4) Name a metal that is liquid at room temperature.
5) Name the process which can be used to purify impure sample of copper sulphate.
6) What is atomic mass unit?
Please answer very shortly! (1 word)
Thanks a lot
Answers
Answer:
1.diffusion and vaporization ...4.mercury..6.u..5.crytalisation
Explanation:
hope it help you
Answer:
1) Brownian movement
It is the random movement of the particles which is called Brownian Movement. This movement occurs because of the bombardment by other moving particles. Larger particles can be moved by light,fast moving molecules.
Diffusion
Diffusion is a process in which the molecules move from high concentration to lower concentration.
2) If copper sulphate crystals are added to water then the particles of copper sulphate crystals loses attraction between them and starts moving continuosly and gets mixed up with water.
3) The concentration of a solution is the amount of solute present in a given amount of solution or solvent.
4) Crystallysation
Explanation:
Crystallysation is the process through which it is possible to purify an impure form of copper sulphate. The impure sample is mixed with a solvent and heated in a water bath. It is allowed to be kept on for a certain amount of time. Later on, the mixture is frozen and the crystals are not formed.
5) A unit of mass equal to 112 the mass of an atom of the most common isotope of carbon (carbon 12) , which is assigned a mass of 12 and has a value of 1.660×10-24 grams.