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Following are balanced equations describing heterogeneous reactions. Choose the appropriate equilibrium expression for each.
a.) 2Na2O2(s) + 2CO2(g) ---> 2Na2CO3(s) + O2(g)
b.) NH4HS(s) ---> H2S(g) + NH3(g)
c.) 2H2S(g) + O2(g) ---> 2S(s) + 2H2O(g)
d.) MnS(s) + H2O(l) ---> Mn2+(aq) + HS-(aq) + OH-(aq)
Draw the Lewis structures for calcium carbonate and magnesium hydroxide.
A clinic took temperature readings of 250 flu patients over a weekend and discovered the temperature distribution to be Gaussian, with a mean of 101.30°F and a standard deviation of 0.8490
How can a known value for KD for a pair of extracting solvents be used to estimate the efficiency of a liquid-liquid extraction
whether these collisions are elastic or inelastic makes no difference as long as the walls are at the same temperature as the gas. Explain. Explain the kinetic molecular theory of gases
How would one prepare 10ml of a 0.25M HCl solution if 1M HCl was available. How much 1M HCl is needed. How much distilled water is used.
Although the viscosity varies over a factor of more than two in the series from hexane to nonane, the surface tension at at 25 degrees Celsius increases by only about 20% in the same series. How do you account for this
the average ph of precipitation in rural areas is 7.00. assuming that the phnbspis controlled by the carbonate system
A reaction 3A2+ + 2B --> 3A + 2B3+ is used to make a battery. The standard Gibbs free energy change for the given reaction is -690 kJ. What is the standard potential (E ) for the battery.
The pressure in car tires is often measured in pounds per square inch (), with the recommended pressure being in the range of 25 to 45 . Suppose a tire has a pressure of 36.0 . Convert 36.0 to its equivalent in atmospheres. Express the pressure nu..
Acid strength decreases in the series HI > HSO4- > HF > HCN. Which of these anions is the weakest base
Calculate the pH of the following solutions with the given [H+] or [OH-] and indicate whether the solution is acidic or basic
Gold has a face-centered cubic structure and has a density of 19.3 g/cm3. What is its atomic radius
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