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Q. Illustrate the physical property of matter?
A physical property of a substance is a quality that can be observed and measured without changing the composition of the substance. Words such as shiny, soft, hard, dull, brittle, flexible, heavy (in density) and light (in density) are used to describe physical properties.
what is the chemical raction of a titration using sodium hydroxide and phenophthalein?
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Calculate the total heat (in J) needed to convert .777 moles of gaseous ethanol at 300 degrees C and 1 atm to liquid ethanol at 25 degrees C and 1 atm. Extra info: b.p. 78.5 degree
Name the common element present in the anode mud in electro refinig of copper. Ans) ANTOMONY ,STRONSIUM,SELENIUM,TELLURIUM,SILVER,GOLD AND PLATINUM . THESE ELELMENTS ,BEING LESS R
Q. What are the rules used for round off numbers? 1. If the digit to the instantaneous right of the last significant figure is less than five don't change the last significan
The statements: (1) In filling a group of orbitals of equal energy, it is energetically preferable to assign electrons to empty orbitals rather than pair them into a particular o
How to find the atomic structure of H
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Which have the same number of S electrons as the d - electrons in fe2+
what is the class of HS
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