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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
How rusting of iron is envisaged as setting up of an electrochemical cell? Solution) Rusting of Iron is due to corossion. Rust is an Fe 2 O 3 .xH 2 O Theory of Rusting :
Q. Reactions with metals? Ans. Halogens commonly undergo reactions with metals. Halogens react with the alkali metal family, Group IA in the periodic table. For example,
Q. Explain the working of chemical cell ? Ans. A chemical cell can be set up by dipping two different metals in an electrolyte and connecting the two metals with an external
1. The temperature of the warm water bath is recorded too high. How will this technique error affect the reported activation energy for the reaction - too high or too low? explain
For">http://imageshack.us/photo/my-images/213/chemistyr.png/ For these structures? I''m not sure how to answer it.
Strategy 2 The wheat flour amount is fixed at 3940g, but that of the active ingredients is varied from 30 to 60 g with the ratio of A : B : C fixed at 3:2:1. The combinations
Q. Define Enthalpy and Calculate the Enthalpy of a system? Ans. Enthalpy is a measure of the total energy content of a system. It is represented by a big H. Change in ent
The nucleus of the element 21 E 45 contains: (1) 45 protons and 21 neutrons (2) 21 protons and 24 neutrons (3) 21 protons and 45 neutrons (4) 24 protons and 21 n
what is the m.p naphthalene,ammonia oxalate,citric acid ,naphthyl acetic acid
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