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Sketch and label a graph of the specific volume vs temperature for a pure metal that shrinks as it cools. State all assumptions made. Show, on the graph, the area in which risers would compensate for shrinkage.
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Why do the instructions call for using a saturated solution of NaOH rather than one at lower concentration? Why can we ignored in the calculation of the concentration of NaOH?
How much will the temperature change when 3.0 g of tooth enamel (specific heat = 0.18 cal/g C) absorbs 0.80 cal of heat energy?
A student is doing the experiment Chemical Formulas of Copper Sulfide by heating copper with excess of sulfur at very high temperatures using a Bunsen burner. Copper and sulfur react stoichiometrically and excess of sulf ...
Calculate the boling point of a solution prepared by adding 11.5 g naphthalene (C10H8) to 250.0 g of benzene. Naphthalene is a non-electrolyte solute, and benzene is an organic solvent that exhibits a boiling point of 80 ...
What is the subshell electron configuration for the Ca20 atom? Which are valence electrons and how many valence electrons are there?
The solubility of silver sulfate, Ag2SO4, inwater has been determined to be 8.0 g/L. What is the solubility in0.37 M sodium sulfate,Na2SO4?
Give an example of when heat is released from water as it undergoes a change of phase.
1-Write balanced equation for the double-replacement precipitation reaction described, using the smallest possible integer coefficients. A precipitate forms when aqueous solutions of nickel(II) iodide and potassium c ...
When benzene (C6H6 ) reacts with bromine (Br2 ), bromobenzene (C6H5Br ) is obtained: C6H6+Br2→C6H5Br+HBr What is the theoretical yield of bromobenzene in this reaction when 28.0 g of benzene reacts with 60.7 g of bromine ...
Why is (NH 4 ) 2 CrO 4 a molecular compound if ionic is metal + nonmetal and molecular is nonmetal+nonmetal? The Cr is a metal and the NH4 and O4 are non metal so it is metal+non metal but why cant it be ionic instead o ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
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