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Explain how a change in the resistivity of the wire impacts the current. Justify your response.
Steam distillation may be used to separate a mixture of p-nitrophenol and o-nitrophenol.
a 0.755 g sample of hydrated copper (II) sulfate was heated carefully until it had changed completely to anyhydous copper(II) sulfate (CuSO4) with a mass of 0.438 g. Determine the value of x
Determine the amount of heat required to raise the temperature of a 153 g bar of gold by 50.0C. (specific heat of gold = 0.128 J/g.C)
Suppose a student mixed 60.6 g of toluene with 48.8 g of nitric acid and recovered 11.5 g of TNT. Find out which was the limiting reagent and Compute the percent yield of the reaction
some inexpensive humidity detection systems consist of a piece of paper saturated with Na2CoCl4 that changes colors in dry or humid air.
If the final solution has a chloride ion concentration of 1.80M which choice is closest to the concentration of the original SrCl2 solution?
consider the equilibrium?n2g o2g 2nogat a certain temperature the equilibrium constant for the reaction is 0.0255.
A certain reaction is spontaneous at 134*C if the enthalpy change for the reaction is 198 kJ/mol. The minimum value of delta s for the reaction has to be
Which of the following describes what happens to the solubility of a slightly soluble ionic compound when a common ion is added to the solution
using a carbon dioxide sample that occupies a 2.54 dm3 volume container at standard conditions. determine the volume of
Given that an atom of a semiconductor has a diameter of 2.45 , what is the maximum number of moles that fit in the channel of a processor chip that is 80.0 long, 84.2 , wide and 435 thick? Assume that the atoms stack in a simple cubic arrangement.
what is the lewis structure of C2H2Br2, also is it polar or non polar, are there any resonance structures or isomers?
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