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Fish, like other animals, need oxygen to survive. oxygen gas dissolved in water can be used by fish, which remove it from the water by means of their grills. Classify the change that occurs when oxygen dissolves in water?
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Write the molecular formula for a compound with the possible elements C, H, N, O that exhibits a molecular ion at 68.0625. please explain it because I want to know how to do it.
A lead-acid battery uses a redox reaction in which lead(0) and lead(IV) are both converted to lead(II). This reaction is facilitated by the presence of sulfuric acid, H2SO4, as shown by the reaction Pb + PbO2 + 2H2SO4 ---> 2PbSO4 + 2H2O
As the sample descended, the water pressure compressed the balloon and reduced its volume. When the pressure had increased to 75.0 atm, what was the volume of the sample? Assume that the temperature was held constant.
The volume of 0.162 mol of helium gas at 30.1 C is increased isothermally from 2.27 L to 5.43 L. Assuming the gas to be ideal, calculate the entropy change (J/K) for the process.
Consider the case is which the volume and temperature of ONE mole of an ideal gas depends explicitly on the time, t. obtain an equation (a differential equation essentially)
Determine the enthalpy change per mole for dissolution of ammonium nitrate in water if 1.25 of the salt is dissolved in 25 g of water and the temperature changes for 25.8 degree C to 21.9 degree C.
The average speed of a nitrogen molecule at 20oC is 515 m/sec. How many minutes will it take the nitrogen molecule to cover exactly 20 km?
Write the structural formula of the main organic product for the following reaction between an alcohol, tosyl chloride, and then a nucleophile.
determine the mass of lithium hydroxide produced when 0.38 g of lithium nitride reacts with water according to the
what is the vapor pressurein mm hgof a solution made by dissolving 18.3g of nacl in 500.0g of h2o at 70 degree celcius.
A cylinder contains 975 grams of chloroform, CHCl3, How many atoms of carbon are in the sample? How many atoms of chlorine are in the sample?
what is the pH of a solution made by adding water to .015 moles of HI untill the volume is 2600. mL?
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