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Discrete Math questions.
How many numbers without decimal points must you select w/o replacement from the range [1, 101] in order to guarantee:
How many exams in a 7-day week must you do to guarantee:
Suppose two soap bubbles, one smaller than the other, are each attached to ends of glass tubes as well as the tubes are connected via a stopcock. While the stopcock is opened, will the bubbles change in size, and if so, which will grow
Determine how many moles of carbon dioxide should be added to the system to bring the equilibrium carbon monoxide concentration to 0.743 mol/L
Iron (II) ions catalyze the oxidation of luminol. The intensity of the resulting chemiluminescence has been shown to increase linearly with iron (ii) concentration from 10^-10 to 10^-8 M.
Write the net ionic equation for the conversion of iodine, I2, to iodine, I-. What kind of reaction is this?
Determine the balanced net ionic equation when aqueous solutions of AgNO3 and NaI are mixed. The balanced net ionic equation is:
Determine the rate of disappearance of A when [A]=.50 M and [B]= .25M. Determine the rate of disappearance of B when [A]= .50 M and [B]=.25M
A sample of gas has a density of 1.25 g/dm at 30 degrees C and 1.02x10^5 Pa. What is the molecular mas of this gas?
3.47 Annual floods for a stream are normally distributed with a mean of 30,000 cfs and a variance of 1 x 106 cfs2. Determine the average return period Tr of a 32,000-cfs flood in the stream.
Based on the sign of E°cell, classify these reactions as spontaneous or nonspontaneous as written. Assume standard conditions.
when 0.1875 moles of nh3 reacts completely with excess hcl 8.25 kj of energy is released as heat. what is delta h for
what is the concentration of the new solution if 2.0 ml of h2o is added to 8.0 ml of a 0.30 m solution to make a new
a chemical reaction produces 0.884mol of H2S gas. what volume will that gas occupy at STP?
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