NAME THE PROCESSES OR TECHNIQUES IN THE FOLLOWING. 1.SEPARATION OF A SOLID FROM A SOLUTION 2.WHEN WATER IS COLD TO FORM ICE 3.WHEN WATER IS BOIL TO FORM VAPOR 4.WHEN IODINE IS HEATED DIRECTLY TO FORM GAS WITHOUT BEING LIQUID 5.WHEN STEAM IS COLD TO FORM WATER 6.WHEN TWO SOLUTION ARE MIXED TOGATHER TO OBTAIN A PRECIPITATE 7.PURE ETHANOL EVAPORATES BELOW ITS BOILING POINT 8.SEPARATION OF A MIXTURE OF WATER AND ETHANOL 9.OBTAINING PURE WATER FORM POND WATER 10.SEPARATION OF GASES FORM LIQUID AIR 11.WHEN A SUSPENTION IS ALLOWED TO STAND SOLID PARTICLES SETTEL DOWN 12.WHEN HEATED IODINE CHANGES DIRECTLY FORM SOLID INTO GAS

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1. The process or technique used to separate a solid from a solution is called filtration. This involves passing the mixture through a filter that retains the solid particles and allows the liquid (solution) to pass through.

2. The process or technique when water is cooled to form ice is known as freezing. At temperatures below 0 degrees Celsius (32 degrees Fahrenheit), water molecules slow down and arrange themselves into a solid crystal lattice, forming ice.

3. The process or technique of water boiling to form vapor is called evaporation. When water is heated to its boiling point (100 degrees Celsius or 212 degrees Fahrenheit at sea level), it undergoes a phase change from liquid to vapor, escaping into the atmosphere as steam.

4. The process or technique when iodine is heated directly to form gas without becoming a liquid is called sublimation. Iodine has a relatively low boiling point, so when heated, it bypasses the liquid phase and goes directly from a solid to a gas.

5. The process or technique of cooling steam to form water is known as condensation. When steam loses heat energy, typically by coming into contact with a cooler surface or air, its water vapor molecules slow down and condense into liquid water droplets.

6. When two solutions are mixed together to obtain a precipitate, it is referred to as precipitation. This process involves the formation of a solid substance (precipitate) from the reaction of two soluble substances, resulting in an insoluble product that settles out of the solution.

7. The process or technique when pure ethanol evaporates below its boiling point is called evaporation. Even below its boiling point (78.37 degrees Celsius or 173.1 degrees Fahrenheit), ethanol molecules at the surface of the liquid gain enough energy to escape into the air as vapor.

8. The separation of a mixture of water and ethanol is commonly done using a process called distillation. Distillation takes advantage of the different boiling points of the components in the mixture. By heating the mixture, the component with the lower boiling point (ethanol) vaporizes and can be collected separately.

9. Obtaining pure water from pond water can be achieved through a process called water purification. This typically involves several steps such as filtration to remove large particles, sedimentation to settle out suspended solids, and disinfection to kill microorganisms. Additional methods like activated carbon adsorption and reverse osmosis are often used for advanced purification.

10. The separation of gases from liquid air is accomplished through a process called fractional distillation. By cooling the air and gradually heating it, the different gases in the mixture (such as nitrogen, oxygen, argon, etc.) have varying boiling points and can be condensed and collected at different stages.

11. When a suspension is allowed to stand, the solid particles settle down due to the force of gravity. This process is known as sedimentation. The larger and denser particles settle down faster, leading to the separation of the solid component from the liquid component.

12. The process or technique when heated iodine changes directly from a solid into a gas is called sublimation. Similar to the example given in question 4, iodine undergoes sublimation when heated, bypassing the liquid phase and transitioning directly from a solid to a gas.