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The figure below is a heat curve for an unknown outerspace substance discovered by the Mars rover. By understanding the heat curve, scientists can make inferences about the composition of the planet. What is the temperature of fusion, Tfusion, and vaporization, Tvapor, for this unknown substance? Note that the units are graded. For a sample of 75.4 g of this substance with a specific heat of 54.8 J/kg·°C, how much heat is added to the substance if the temperature is to change from 180.0°C to 232.0°C?
The ore is dissolved in hot, concentrated acid and passed over a reducing agent so that all the antimony is in the form Sb3 (aq). The Sb3 (aq) is completely oxidized by an aqueous solution of BrO3-(aq). Complete and balance the equation for this r..
why is significant serum (in the blood stream) chlorestrol reduction so difficult, and why do most of the drugs designed to reduce
Could someone please explain why synthesized soap and detergent have different reactions when they are mixed with calcium chloride
One of the nuclides in spent nuclear fuel is U-253, an alpha emitter with a half life of 703 million years. How long will it take for the amount U-235 to reach 14.0 percent of its initial amount? T=?
Calculate the heat that must be supplied to 10.8 g of Ne at .15 atm to raise its temperature from 28C to 51C at constant pressure. Assume that neon behaves as an ideal gas.
how many moles of HCl are required to make 15.00mL of an aqueous 2.500 molar HCl solution
Question- Determine the relative area of each peak in the chromatogram to the total area of all peaks in order to rank (from least to most susceptible) the suspectibility of the hydrogens on each carbon of 1-chlorobutane to chlorination.
the boiling point of another member of this homologous series wasfound to be 309 . what is the likely molecular formula
In a vessel with a volume 3 m^3 you put 0.03m^3 of liquid water and 2.97m^3 of water vapor so the pressure is 101.33 kPa.
If the current price of 30. g of vanillin is $112, determine the cost to supply enough vanillin so that the aroma could be detected in a large aircraft hangar with a volume of 3.8 x 10^7 ft^3.
A pair of theoretical enantiomers is named below. For each stereoisomer, draw the structure. Be sure to specify the stereochemistry via wedge-and-dash bonds.
When 0.577 L of Ar at 1.20 atm and 227°C is mixed with 0.296 L of O2 at 501 torr and 127°C in a 400. mL flask at 27°C, what is the pressure in the flask
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