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A chemical change takes place when one or more substances change into new substances. A chemical change is as well known as a chemical reaction. The emergence of new substances is the sign that a chemical reaction has occurred. In a chemical effect the substances present at the start are called reactants. The new substances which are formed in the reaction are called products. A chemical reaction is symbolized by a chemical equation which shows the relationship between reactants and products.
Hexagonal Close Packed (HCP) Structure:- The cell of HCP system has 12 corner atoms, one at each corner of the hexagon with two base centered atoms, one at the top face of the
excess copper(2)hydroxide solid was placed in a NaOH solution and left until the equilibrium was reached, ph was 10 at 25C Ksp for Cu(OH)2
defnition and example
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Rutherford's α particle scattering experiment proved that atom has: (1) Electrons (2 )Neutron (3) Nucleus (4 )Orbitals Ans: Nucleus
For liquids - Drying of Organic Substances Organic liquids are usually dried by keeping them over night in contact along with a dehydrating (desiccating) agent that does not re
why standard enthalpy change of Br2(g) is not zero
Q. Describe Lime-soda method for softening of hard water. Discuss the advantages of the process and the chemistry involved in it.
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