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Q. Describe Subatomic Particles and the Nuclear Atom?
One of the most significant results of Dalton's theory was that it generally persuaded scientists that atoms exist. As a result scientists start research to discover the exact nature of the atom.
Finding of electrons Experiments around the turn of the twentieth century provided evidence that the atom consists of smaller particles. When J. J. Thomson applied a high voltage to two electrodes sealed in an evacuated tube an invisible beam or ray was found to emanate from the negative electrode (cathode) of the tube and travel toward the positive electrode (anode). The path of the ray could be made visible by the glow it caused when it passed across a plate coated with fluorescent material. The beam called a cathode ray could be deflected by electric and magnetic fields.
Analysis of oils and fats - Acid value It points out the amount of free acid present in the oil or fat. It is described as the number of milligrams of KOH needed to neutralize
Ask question #Minimum 100 words accept how r scales formed in boliers & wt rhte affects of scales on boiler platesed#
Trans -Isomer of a substance is more stable than Cis-Isomer.
What is the packet of energy called: (1) Electron (2) Photon (3) Positron (4)Proton Ans: Photon
How many moles of gas occupy 98 L at a pressure of 2.8 atmospheres and a temperature of 292 K?
chemical reaction of lactic acid
industrial application of cyanohydrin.?
diamond is covalent.yet it has high melting point.why?
Desiccants (drying agents) can often be regenerated by heating. A desiccant that is commonly regenerated is CaSO 4 ?2H 2 O:
Metallurgical Rate Phenomena
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