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Why does that least activating group directed the bromination to occur only at the para position
A disinfectant states that it will kill 99.9% of bacteria if left on for 45 minutes. What percentage of bacteria are killed if the disinfectant is left on only for 5 minutes
What was the percentage by mass of Mg(OH)2 in the original sample? [Hint: When Mg(OH)2 or Al(OH)3 reacts with HCl(aq), the products are a chloride salt, water and CO2(g). Assume that all of the CO2(
For a general reaction order n, determine the rate equation, the variables to be plotted to obtain a graph with a linear slope equal to the rate constant k (or -k), and an expression for the ½
A 2.48 L sample of He at 739 torr is mixed with 6.08 L of Ar at 325 torr both at 25 degrees C is placed in a 4.80 L container at 25 degrees C. What is the partial pressure in atm of He
A 2.00 L sample of air at -50 degreees C has a pressure of 700 torr. What will be the new pressure in torr if the temp is raised to 50 degrees C and volume is increaed to 4.00 L
Find the action variable for a ball with speed v bouncing between two elastic walls a distance d apart. Find the angle variable
A series RCL circuit contains a 48.0-? resistor, a 2.70-?F capacitor, and a 3.75-mH inductor. When the frequency is 2590 Hz, what is the power factor of the circuit
A spaceship of mass 2.20×106kg is cruising at a speed of 4.20×106m/s when the antimatter reactor fails, blowing the ship into three pieces
A 1000kg sports car accelerates from 0m/s to 33m/s in 13s. What is the average power of the engine
The molecule iodine monochloride ICl has a diple moment of 1.6 D and a bond length of 2.32 A. What is the effective charge on I in untis of electronic charge e
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.10×106N , one at an angle 10.0? west of north, What is the total work done by the two tugboats on the supertanker
Dehydration of 2-bromobutane in the prescence of a strong base proceeds via which of the following mechanistic pathways
A 1.00 cm object is 60.0 cm in front of a diverging lens that has a -30.0 cm focal length. Find the image position and height. Is the image real or virtual? Is the image upright or inverted
From its electronic configuration, predict which of the first 10 elements would be most similar in chemical behavior to the as yet undiscovered element 170.
Calculate the angular velocity the flywheel must have to contain enough energy to take the bus from rest to a speed of 27.0 m/s, assuming 83.0% of the rotational kinetic energy can be transformed in
how does the first ionizaiton energy of the alkali metal in a given period compare with the first ionization energy of the halogen in the same period. what is the result in terms of how these elemen
Determine the possible values of the total spin and total angular momentum quantum numbers, S and J, for a helium atom in the 1s3p conguration
You want to take a full-length photo of your friend who is 2.00m tall, using a 35.0mm camera having a 50.0mm lens. How far should your friend stand from the lens
An aqueous potassium nitrate solution has a freezing point of -2.0 °C. How many moles of potassium nitrate are contained in 0.5 kg of water in this solution? The freezing point depression consta
Based on the stoichiometry, at what point does the limiting reactant change? show calculations to support your answer. The volume of acid HCL (10mL) is constant and mass of metal Mg (0.250g) is consta
A steel wire 2.00m long with circular cross section must stretch no more than 0.260cm, What minimum diameter must this wire have
A tennis ball of mass 0.0611 kg is served. It strikes the ground with a velocity of 55.6 m/s (124 mi/h) at an angle of 21.2° below the horizontal. what average force did the ground exert on the
Draw skeletal structure of major product for 1-iodo-4-methyl cyclohexane when reacted with NaSCh2Ch3