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if the pressure during the reaction stays CONSTAT (put the valune can change, like in a piston balloon which of these reactions do work on the surroundings?
1) A(s)+B(g)-->C(g)
2) A(g)+B(g)-->C(s)
3) A(s)+B(aq)-->2C(g)
4) A(g)+B(g)-->3C(g)
5) A(s)+B(g)-->2C(g)
6) A(g)+B(s)-->C(s)+D(g)
If a reaction mixture contains only N2O and NO2 at partial pressures of 1.0 atm each, the reaction will be spontaneous until some NO forms in the mixture.
Interhalogens are covalent compounds when one halogen is bonded with another halogen. When 3.299 of iodine reacts with fluorine, 5.768g of IFx is formed. What is the value of x in product formula (IFx)?
Type the electron configuration for the following ions according to the rules in your text. Use the format {He} 2s2 2p2 for carbon. Pay attention to the spaces.
Why does phenolphtalein change colour during the production of gas?
The vapor pressure of a mixture of 400 g of carbon tetrachloride and 43.3 g of an unknown compound is 137 torr at 30 °C. The vapor pressure of pure carbon tetrachloride at 30 ºC is 143 torr
An unknown, rectangular substance measures 3.6 cm high, 4.21 cm long, and 1.17 cm wide. If the mass is 21.3g, what is this substance's density?
The vapor pressure of mercury is .0127 torr at 50 degrees celcius and .0888 torr at 80 degrees celcius. calculate the enthalpy of vaporization of mercury
What is the concentration of the solution as a mass percentage?
A 3.00-l flask is filled with gaseous ammonia, . The gas pressure measured at 18.0 C is 1.55 atm . Assuming ideal gas behavior, how many grams of ammonia are in the flask?
Concetrated acedic acid is a Class II combustible liquid. What is the molecular weight of acetic acid that will form 2 moles of CO2 assuming complete combustion.
The Reaction 2NOCl(g)---->2NO+CL2(g) has rate-constant values for the reaction of NOCl of 9.3x10^-6/s at 350K and 6.9x10^-4/s at 400K. Calculate activation energy for the reaction. What is the rate constant at 435K?
Assuming the volume of the stomach to be 1.0L what will the pH change of the stomach acid resulting from the ingestion of one tums tablet
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