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Explain regulation of enzyme activity by co- factors, competitive inhibitors, allosteric inhibitors.
A 68.0 mL solution of 0.500 M Cd(NO3)2 is prepared. What mass of NaOH is needed to precipitate the Cd2+ ions from this solution?
A titanium Bicycle frame displaces 0.314L of water as well as has a mass of 1.41kg. Explain what is the density of the titanium ing/cm3
what volume of 0.684 m mno4- solution is required to react completely with 27.50 ml 0f 0.250 m fe? this is an
Carbon monoxide competes with oxygen for binding sites on the transport protien hemoglobin. CO can be poisonous if inhaled in large quantities. A safe level of CO in air is 50 ppm
Naturally occurring cobalt consists of only one isotope, 59Co, whose relative atomic mass is 58.9332. A synthetic radioactive isotope of cobalt, 60Co, relative atomic mass 59.9338, is utilized in radiation therapy for cancer.
What quantity of heat is required to vaporize 0.500 mL of Hg at 357 degrees celsius its normal boiling point. The density of Hg is 13.6 g/mL
consider the reaction 2abg lt-gt a2g b2g.a 1.00 mol sample of a2 and 1.00 sample of b2 are placed into an evacuated
Which of these mixtures are heterogenous
The mass of a cube of iron is 379 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
Given a 4.50 L container of helium at 298 K and 1.00 atm, and a 3.00 L container of argon at 298 K and 1.00 atm, write a brief statement to explain whether or not atoms of He and Ar in their respective containers have the same average speed.
A 24.0 g sample of nitrogen gas reacts with an excess of hydrogen gas to give an actual yield of 3.85 g NH3. What is the percent yield for this reaction? Reaction: N2(g) + 3 H2(g) ? 2 NH3(g)
Write a balanced half-reaction for the reduction of hydrogen peroxide to water in an acidic solution. a. 2H2O2(l) + 2e- --> 2 H2O (l) + O2(g)
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