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Q. Hypothesis on chlorofluorocarbon?
A hypothesis is a probable explanation for what has been observed. Based on the explanation of ozone thinning and CFC build-up in the chemists Mario Molina, the atmosphere and F. Sherwood Rowland hypothesized that CFCs break in the atmosphere due to the Sun's ultraviolet rays. They additional hypothesized that a chlorine particle produced by the breakdown of CFCs could break down ozone.
how to make phosphate buffer of .05 M
What are the Interfacial Defects Grain boundaries are interfaces where crystals of dissimilar orientations meet. A grain boundary is a single-phase interface, with crystals on
Q. a. What is the origin of fossil fuels? b. List three fossil fuels. c. Are fossil fuels a renewable resource? Answer: a. Coal, natural gas and oil. b. Fossil fue
Energy difference is maximum between which of the consecutive energy levels in an atom? Ans) According to the line spectrum of hydrogen maximum energy is there between FIRST AND
what is inductomeric effect
Which of the following electronic configuration is not possible according to Hund's rule: (1) 1s 2 2s 2 (2) 1s 2 2s 1 (3) 1s 2
20.0 mL of 0.2 M CaCl 2 diluted with water to 100.0 mL. Calculate [CaCl 2 ], [Ca 2+ ] and [Cl - ]. Produce from concentrated hydrochloric acid (12 M) 3.0 L 0.60 M HCl solution.
Define the General Arrangement of Physical Elements of a Galvanic cell? The general arrangement of the physical elements of a galvanic cell is therefore Terminal - electron
electronic vinyas
This type of cells becomes dead over a period of time and the chemical reaction stops. They cannot be revitalized or used again. Some ordinary examples are dry cell, mercury cell,
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