What does an increase in temperature do to the reaction rate?
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question 1 of 5
It increases the concentration of the molecules and
slows down the rate of reaction.
It increases the number of effective collisions
between reactants, raising the reaction rate.
It decreases the number of collisions and the
energy of molecules to limit further reaction.
It decreases the energy of the system, limiting how
much further reaction can occur.
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The ultracentrifuge is an important tool for separating and analyzing proteins. because of the enormous centripetal accelerations, the centrifuge must be carefully balanced, with each sample matched by a sample of identical mass on the opposite side. any difference in the masses of opposing samples creates a net force on the shaft of the rotor, potentially leading to a catastrophic failure of the apparatus. suppose a scientist makes a slight error in sample preparation and one sample has a mass 10 mg larger than the opposing sample. if the samples are 12 cm from the axis of the rotor and the ultracentrifuge spins at 70,000 rpm, what is the magnitude of the net force on the rotor due to the unbalanced samples? ( be thorough on your answer)