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The Ca2+ and Mg2+ ions in hard water form scum with soap. Therefore they don''t form lather and therefore don''t clean the dirt.
When the principal quantum number(n= 3) , the possible values of azimuthal quantum number(l ) is: (1) 0, 1, 2, 3 (2) 0, 1, 2 (3) - 2, - 1, 0, 1, 2
Conformation energy profile for cyclohexane ring flip cyclohexane ring flip
Q. How to prepare ammonia in industrial level? Ans. Production of Ammonia Ammonia, NH 3 , can be prepared by adding a strong alkali metal (such as sodium) to an ammon
Nitrogen atom has an atomic number of 7 and oxygen has an atomic number 8. The total number of electrons in a nitrate ion will be: (1) 8 (2) 16 (3) 32
Millikan and Harvey Fletchers oil-drop experiment The original experiment was performed in the year 1909 through Robert Millikan and Harvey Fletcher through balancing the downw
The gas constant, also known as the universal, usually denoted by symbol R is a physical constant which is featured in a large number of fundamental equations in the physical scien
The aluminum foil on a certain roll has a total area of 18.5m2 and a mass of 1275g. Using a density of 2.7g per cubic centimeter for aluminum, determine the thickness in millimeter
physical properties
Why bromoethane are insoluble Because only two layers form, two of the three substances are mutually soluble. we know that water and bromoethane are insoluble-they form two lay
Volumetric analysis Volumetric analysis is a quantitative analysis. It includes the measurement of the volume of a known solution needed to bring about the completion of the r
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