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2HCl(aq) +Na2CO3(aq) -Ã 2NaCl(aq)+H2O(l)+CO2(g) Compute the number of moles of carbon dioxide formed if 23.1mL of sodium carbonate reacts with excess hydrochloric acid.
a plutonium-239 atom may emit a photon of light with a wavelength of 24.0 pm when it undergoes nuclear fission. What is the frequency of this radiation?
What happens to the interference pattern that results from the diffraction of electrons passing through two closely spaced slits if the rate of electrons going through the slits is decreased to one electron per hour
Nitrogen and hydrogen gases react to form ammonia gas. N2(g) + 3 H2(g) 2 NH3(g) At a certain temperature and pressure 1.4 L of N2 reacts with 4.2 L of H2. If all the N2 and H2 are consumed, what volume of NH3, at the same temperature and pressure,..
Nitrogen gas in a tube then compressed the tube around the Nitrogen gas at a fast rate, would the nitrogen gas explode or combust? and will heat result from the combustion?
What is the percent yield of a reaction in which 216 g phosphorus trichloride reacts with excess water to form 134 g HCl and aqueous phosphorus acid (H3PO3)
How many moles of oxygen are needed to react with 5.0 moles of ammonia? In the above reaction, how many moles of water can be produced from 256 grams of oxygen?
Write and balance the equation for the reduction of iodate by hydrogen sulfite ions to give iodide and sulfate in basic
Consider two samples of liquid: one mole of water H2O and one mole of ethanol C2H5OH. The density of water is 1.0 g/mL, and the density of ethanol is 0.785 g/mL. Answer each of the following questions by selecting the correct choice.
Use the Nernst equation and data from Appendix D to calculate Ecell for each of the following cells. Enter your answer with 3 significant digits. Enter scientific notation as 1.23E4
Complete and balance the equations for each of the following reactions. Express your answer as a chemical equation. Identify all of the phases
has a rate constant k= 1.10 x10^-14 at 470 degrees C and an activation energy of 264 kJ/mol. What is the temperture of the reaction when the rate is constant is equal to 4.36 x 10^-3s^-1?
Knowing the complete genome of an organism doesn't necessarily tell you about the nature of all proteins in the organism. Explain why
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