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Arsenic poisoning has been recognized since ancient times. Recognize the two enzymes that are inactivated by arsenic as well as show how the toxin works.
A buffer is prepared by mixing 615 mL of 0.50 M formic acid, HCHO2, and 385 mL of 0.50 M sodium formate, NaCHO2. Calculate the pH.
The third ionization energy of Ru is less than the third ionization energy of Fe. Explain.
Indium has only two naturally occurring isotopes. The mass of indium-113 is 112.9041 and the mass of indium-115 is 114.9039 .
what is the final temperature when 20.0 g of water specific heat capacity 4.184 jbullg-1bullk-1 at 80.0 ?c is mixed
a beaker containing 250g of water is heated from 23 degrees C to 100 degrees C. what is the heat gain in calories?
Of the seven categories of matter (metallic network, non-metallic network, ionic-covalent network, ionic network, polar molecular, weakly polar molecular, and non-polar molecular), which are the most similar. Why
When the space shuttle lifts off on a mission from Cape Canaveral, the chemical potential energy of the fuel is converted into
Compute the work of expansion in Joules accompanying the complete combustion of 1.0 g of sucrose to carbon dioxide and (a) liquid water (b) water vapor at 20 degrees Celsius while the external pressure is 1.0 atm. Use two important figures
Nitric acid is not only a strong acid but also a strong oxidizing agent. In hot concentrated acid solution, the reaction with zinc is: 3 Zn(s) + 8 HNO3 ? 3 Zn(NO3)2(aq) + 2 NO(g) + 4 H2O
Cyclohexene was formed from cyclohexanol VIA E1 elimination using heat and phosphoric acid. What are the two possible bases of this reaction and which would be more operative
Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 49. g of butane is mixed with 150. g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction.
Calculate the total calories absorbed from the surroundings. D. ?H for Solution of KCl(s) in water: ?T for reaction D: -4°C Mass of KCl: 5.00 g Volume of water: 0.050 L
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