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A reaction between sodium oxalate and copper (2) sulfate is observed. A blue precipitate informed after about 30 seconds of mixing and the reaction mixture remains colorless. write a net ionic creation equation for this reaction and indicate which chemical is responsible for the blue precipitate.
The barometric pressure in a cavern was measured using a mercury barometer. A value of 74.2 cm of Hg was obtained. How many atmospheres is this
What is the empirical formula of a hydrocarbon which produces 2.703 g CO2 and 1.108 g H2O
If the sample contains a combined total of 1.75 grams per mole and has a total mass of 51.0 grams, what are the percentages of CO2 and Ne in the sample by mole?
Radioactive nitrogen-13 has a half-life of 10 minutes. After 40 minutes, how much of this isotope would remain in a sample that originally contained 96 mg?
Effusion describes, A) the process by which a gas spreads out through another gas B) the process that describes the collisiions that occur between gas molecules
.493g of H2SO4 is reacted with a .568 M solution of NaOH to make sodium sulfate and water. How many liters of H2SO4 will react with .633 L of the NaOH solution.
Each represents a greater or less entropy or greater or less stability: 1. gluclose sugar vs. carbon dioxide and water
When 25 mL of a 90 mL stock solution containing 2.15 M Pb(ClO3)2 is diluted to 33 mL, what is the concentration of ClO3- in the new solution
Indicate whether each of the following processes produces an increase or decrease in the entropy of the system:
The initial volume of the balloon is 5.00 , and the pressure is 760. The balloon ascends to an altitude of 20, where the pressure is 76.0 and the temperature is 50. What is the new volume, of the balloon in liters, assuming it doesn't break or leak
Arrange the following reactions according to increasing change of entropy values. A. CH4(g) + H2O (g) = CO(g) + 3H2(g) B. C(s) + O2(g) = CO2 (g) C. H2O2(liquid) = H2O(liquid) + 1/2 O2 (g)
1. what is the eletron configuration of hg ion?2. why does it actually exist as hg22 ion rather than as hgion?3.when
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