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A hydrogen-filled balloon was ignited and 1.50 gram of hydrogen reacted with 12.0 g of oxygen. How many grams of water vapor were formed?
For a given transfer of energy, a greater change in disorder occurs when the temperature is high.
calculate the molarity of a KCl solution made by disslving 52.5 g of KCl in 250 ml of water?
For each reaction below, (a) identify the oxidation states of the atoms and (b) identify the oxidant, reductant, species oxidized, and species reduced.
Write the balanced formula unit equation for the reaction of hydrobromic acid with magnesium hydroxide. What is the sum of the coefficients?
the temperature of a 2.0 liter sample of heluim gas at STP is increased to 27 celsius and the pressure is decreased to 80.0 kPa. what is the new volume of the helium sample.
what is the net ionic equation potassium hydroxide and iron(III) nitrate.
degree cl the initial concerntration of the three gases are 0.270M h2s,0.270 h2 and 0.135 s2. determine the equilibrium concentrations of the three gases
The following compound has two stereoisomers. One has a dipole of 0 D, and the other has a dipole moment of 2.95 D. Draw the structure of the stereoisomer with dipole moment of 0 D.
200 mL of 1.00M NaOH is reacted with 200 mL of 1.00 M HCl in a calorimeter. The calorimeter and the solutions were at an initial temperature of 19.5oC before mixing.
which of the following aqueous solutions will freeze at the lowest temperature? a. 0.10 m KCl, b. 0.20 m C6H12O6 (glucose), c. 0.050 m AlCl3, d. 0.15 m SrBr2, e. all of the above freeze at the same temperature
what affect would each of the following changes in procedure have had on the calculated percentage of fat found for
when 92.0 grams of nonionic compound were dissolved in 985 grams of water the freezing point of the solution was found
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