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Q. Describe about states of matter?
Under usual conditions matter exists in three different physical forms called the states of matter-solid or liquid or gas. Solid matter has a specific shape and a definite volume. A solid is inflexible and incompressible so it keeps a certain shape and cannot be squeezed into a smaller volume. A solid has these properties for the reason that the particles that make up the solid are packed closely together and are held in a specific arrangement.
Cast iron is iron or a ferrous alloy which has been heated until it liquefies, and is then poured into a mould to solidify. It is usually made from pig iron. The alloy constituents
trend of atomic size
What periodic elements are found in computers
shortnotes
SULFUR, SELENIUM AND TELLURIUM The elements known commonly as the chalcogens are in the same group (16) as oxygen. They form some compounds same to those of oxygen, but show m
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The heat of combustion for ethane, C 2 H 6 , is 52.0 kJ/g. How much heat could be released if 1 mol of ethane undergoes full combustion? Answer:
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Explain and Define standard feat of formation Ans) The amount of heat liberated of absorbed when single mole of compound is formed in its standard state from its elements in the
why wood doesnot sublimine ?
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