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Hydrochloric acid reacts with calcium to form hydrogen and calcium chloride. If 100 grams of hydrochloric acid reacts with 100 grams of calcium, what is the limiting reagent?
hydrochloric acidhydrogencalcium chloridecalciumnone of the above
What should be the normality of a sodium hydroxide solution if exactly 25.00ml are to be used to titrate 25.00of a vinegar sample containing 4.80% acetic acid
What is the order of stability of these three isomers based on their steric energies. and Why.
If 85.0 J of heat is added to 50.0 g of nickle at 25.0 C , what is the final temprature of the nickle?
Using standard reduction potentials, calculate the equilibrium constants for the following reactions.
Molecular iodine, I2(g), dissociates into iodine atoms at 625 K with a first-order rate constant of 0.271 s^-1. If you start with 7.0×10?2 M I2 at this temperature
what does hemoglobin bond to using coordinate covalent bonds. A CO2 B O2 C CO D all of the above
the solubility product constant for MgF2 is 6.4 × 10-9. How many grams of MgF2 will dissolve in 150 mL of H2O at 25°C?
Using Henry's law, calculate the molar concentration of O2 in the surface water of a mountain lake saturated with air at 20 ^ C and an atmospheric pressure of 665 torr. The partial pressure of O2 is .21 atm.
Calcium and Magnesium carbonates occur together in the mineral dolomite. Suppose you heat a sample of the mineral to obtain the oxides,CaO and MgO, and then treat the oxide sample with HCl.
at 400 k the rate of decomposition of a gaseous compound initially at a pressure of 12.6 kpa was 9.71 pas when 10.0
Assuming 100% dissociation, calculate the freezing point and boiling point of 1.83 m AgNO3(aq). Constants may be found here.
An average human DNA molecule has 5 X 10^8 binucleotides (rungs on the DNA ladder) of four different kinds. If each rung were a random choice of one of these four possibilities, what would the residual entropy associated with this typical DNA mole..
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