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The lock and key model of enzyme activity proposes that each
A) Enzyme can react with only a single substrateB) Enzyme has a cofactor that promotes the catalytic activityC) Substrate has a specific cofactor that binds it to the enzymeD) Enzyme binds a specific substrate because the active site and substrate have complementary structures.E) Both A and B are correct
The temperature of a 150 gram drinking hlass decreased from 25 to 14 * C as 200 grams of water were added
Metallic copper is formed when aluminum reacts with copper(II) sulfate. How many grams of metallic copper can be obtained when 54.0 g of Al react with 319 g of CuSO4?
The discovery of hafnium, element number 72, provided a controversial episode in chemistry. G. Urbain, a French chemist, claimed in 1911 to have isolated an element number 72 from a sample of rare earth (elements 58-71) compounds. However, Niels B..
If we took EXACTLY 1.00 ml of a 1.000 M solution of Cu(NO3)2 and placed it in 99.000 ml of water and mixed it, then took 2.00 ml of this solution and placed it in 18.000 ml of water.
The concentration of an enzyme within a cell is extremely low relative to other material present, yet functions effectively in its metabolic role.
Assuming Kf= 478Kg/s^2, calculate and compare the fraction of molecules in the first excited vibrational state at 1000K
What is [Pb^2+] in a saturated solution of PbCO3 if Na2CO3,with a common ion is added to give [CO3^2-]=3.0x10^-4 M? PbCO3 Ksp=7.4x10^-14
What is the total number of moles of Ca needed to react completely with 4.0 moles of H2O?
Calculate the fraction of atom sites that are vacant for silver at 695°C. Assume an energy for vacancy formation
Naming compounds containing double as well as triple bonds, Alkenes contain double bonds while alkynes contain triple bonds. How do you name a compound that has both a double and a triple bond
2 O3 (g) ? 3 O2 (g) (rate expression)
if 98 g grams of CaCN2 reacts with 59 g grams of H2O, what mass of NH3 will be formed.
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