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Consider the reaction between Mercury Iodide (Hg2I2) and sulfur yielding mercury (HgS) sulfide and iodine (divalent molecule). Which element is reduced?
a. mercury
b. sulfur
c. iodine
d. hydrogen sulfide
e. hydrogen
What is the molarity of the carbonate ion in sodium carbonate, Na2CO3, prepared by dissolving 3.5 g of sodium carbonate in enough water to form 0.800 L of solution?
What is the half-life of bismuth-210 if 11.7 days are required for the activity of a sample of bismuth-210 to fall to 19.8 percent of its original value
Calculate the energy levels of the pi-network in octatetaene, C8H10, using the particle in the box model. To calculate the box length, assume that the molecule is linear and use the values 135 and 154pm for C--C and C-C bonds.
The active ingredient in acetylsaliclic acid was isolated. What does it mean is my experimental melting point range was very broad and was also lower than the literature melting point
the vapor pressure of chlorine dioxide clo2 is 155 torr at -22.75 ?c and 485 torr at 0 ? c. what is the normal boiling
oleum or fuming sulfuric acid available commercially in concentraytions ranging from 20-99 sulfur trioxide. a. what is
an automobile tire has a pressure of 325 kpa when the temperature is 10 degrees celcuis. if the temperature of the tire
What percentage of a serving of this sandwich did Michael burn during his winning time of 1 minute 54 seconds in the 200-meter individual medley relay race?
a solution to replace potassium loss contains 40. meql of k and cl-. how many moles of k and cl- are in 1.5 l of the
A gas has a volume of 2.84 L at 1.00 atm and 0oC. At what temperature does it have a volume of 7.50 L at 520 mmHg
if you burn 40.7 g of hydrogen and produce 364g of water, how much oxygen reacted?
Calculate the ppm salt (NaCl) in a 50.00 mL sample of an unknown brine titrated with 37.64 mL of 0.1024 M silver nitrate solution.
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