Chemistry
1. Mention two ways to liquify atmospheric gases.
2.Which one of the two solutions will scatter light,sugar solution or soap solution?
3.Write any two properties of suspension.
4.What are the components of a solution?
5."The wool being knitted into a sweater is a physical change "__Justify the statement
6.Name the techniques to seperate
a) Salt from Sea water
b) Butter from curd
7.Write the names of any two substances that are sublime.
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Answers
Answer:
1.Atmospheric gases can be liquefied by applying pressure and reducing temperature.
2.Soap solution.
3.There are two basic types of suspension components: linkages, springs.
4.Solutions are homogeneous mixtures. The major component is called solvent, and the minor components are called solute. If both components in a solution are 50%, the term solute can be assigned to either component.
5.The wool being knitted into a sweater is a physical change.
6.The salt can be separate from sea water by distillation,Butter from curd can be separated by the technique of centrifugation.
7.At standard, atmospheric pressure, a few solids which will sublime are iodine (at slightly higher than room temperature), carbon dioxide (dry ice) at -78.5 degrees Celsius, as well as naphthalene.