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Predict whether a precipitation reaction will occur when aqueous solutions of the following substances are mixed:
a) MnCl2 + Na2S
b) HNO3 + CuSO4
c) Hg(NO3)2 + Na3PO4
d) Ba(NO3)2 + KOH
Compute the final temperature of the mixture (assuming no heat loss to the surroundings.)
How much heat is required to warm 211 g of ice from -45.9°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
Three possible resonance structures are shown below for the SO2Cl2 molecule. Using formal charge, determine the order of stability of the three structures (i.e. the order in which they contribute to the overall resonance hybrid structure).
Assuming that a neutron star has the same density as a neutron, calculate the mass in kilograms of a small piece of a neutron star the size of a spherical pebble with a radius of 0.10 mm.
CaH2(s) + 2H2O(l) Ca(OH)2(aq) + 2H2(g) How many grams of CaH2 (Molar Mass = 42.1 g/mol)are needed to generate 10.0 L of H2 gas if the pressure of H2 is 769 torr at 28.0°C?
you are taking a walk when a bid mean dog growls and begins to chase you. The increased epinephrine will increase? a glycolysis in the liver b glycolysis in the muscle
Consider the titration of 41.2ml of 0.270M HF with 0.180M NaOH. Calculate the ph at each of the following points. how many milliliters of base are required to reach the equivalence point?
body scanners used in hospitals operate with 400 radiofrequency energy.How much energy does this correspond to in kilojoules per mole?
What is the system? What is the surrounding? In what direction does the heat flow? Is the process endothermic or exothermic?
Compute the a)molarity of the solution, b)molality of the solution, c) mole fraction of Ammonia.
Weight of Water Required, Calculate the weight of water required to steam distill 500mg of bromobenzene at 95 degrees Celsius.
Draw the valence electron structures (Lewis structures) for the following atoms: Magnesium, Carbon, Bromine, Neon.
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