Is it safe to assume that if both r- or both s are identical
In Organic Chemistry, when determining if a tetrahedral molecule is chiral or identical to another. is it safe to assume that if they are both R- or both S- that they are identical? or is it possible for both to be R but still be chiral?
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A car travels due east with a speed of 45.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 60.0 with the vertical. Find the velocity of t
The oxide of 'N' element contains 33.33% of the element .The same element forms a chloride whose Vapour density is 59.25. Calculate equivalent weight , atomic weight and valency of the element ?
Calculate the pH of the solute in an aque- ous solution of 0.611 M NH3(aq) if the Kb is 1.8 × 10-5. What is the percentage protonation of the solute? Answer in units of % & ;
The block, of mass 1.14 kg, is subject to no horizontal external forces during the collision with the bullet. After the collision, the block is observed to move at a speed of 4.50 m/s. How much kinetic energy is lost?
Is it safe to assume that if they are both R- or both S- that they are identical? or is it possible for both to be R but still be chiral?
An ethylene glycol solution contain 21.2g ethylene glycol (C2H6O2) in 85.4ml of water. Compute the freezing point and boiling point of the solution. (Assume the density of the water was 1.00g/ml
A 15 g bullet traveling at 485 m/s strikes a 0.9 kg block of wood that is balanced on a table edge 0.7 m above ground. If the bullet buries itself in the block, find the distance D at which the block hits the floor.
The canister is placed in an oven until all the has boiled off and the canister is empty. How much energy in calories was absorbed?
A skydiver weighing lb (including equipment) falls vertically downward from an altitude of ft and opens the parachute after s of free fall. Assume that the force of air resistance is when the parachute is closed and when the parachute is open, whe
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This study is part of the research project "Physical and Mental Health Project for College Students in Science and Engineering Majors in Civil Aviation Colleges
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