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In general, decreasing the temperature makeswhich phase transitions more likely to occur?1. condensation, fusion, deposition2. condensation, freezing, deposition3. evaporation, fusion, sublimation4. sublimation, condensation, freezing5. evaporation, deposition, freezing
What is the percent by mass of NaHCO3 in a solution containing 60 g of NaHCO3 dissolved in 600 mL of H2O?
A balloon contains 400cm3 of helium at 25degrees and 1atm pressure. If the balloon bursts when the volume exceeds 800cm3. What would be the maximum temperature it could withstand at constant pressure?
What is the value of at this temperature? 23.15 At this temperature the rate constant for the reverse reaction is 310. . What is for the reaction?
For the 3 wood preservatives noted, would acidic vs. alkaline soil or water conditions cause more (or less) leaching or dissolution of these compounds. How do these compounds actually leach out of wood into the environment?
To obtain the same antifreeze protection requires 76 g of propylene glycol to replace each 62 g of ethylene glycol. Calculate the mass of propylene glycol required to replace
A balloon filled with helium has a volume of 2.41 L on a warm day at 311 K. It is brought into an air-conditioned room where the temperature is 295 K. What is its new volume.
Explain how you arrived at this conclusions. Write a balance chemical equation for the reaction that occurs when sodium cyanide dissolves in water.
Standard Temperature Pressure and Volume, The respiratory rate of a person is 20 breathes per minute. If every average breath is about 310cm^3 of air at 22C and 740mmHG
What is the calculated value of the partial pressure(atm) of O2 in acid mine water of pH 1.700, in which [Fe3+] = [Fe2+]?
Mercury-205 has how many protons, neutrons, electrons, and electrons in the 1st quantum shell and in the compound BCl3 which is the more electronegative element?
A 326 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 640. mmHg. Calculate the moles of Ar present.
A particular brand of gasoline has a density of 0.737 g/mL. How many grams of this gasoline would fill a 14.4 gal tank?
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