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If the opposite signs attract each other in an atom and same signs pushes back each other. But in an atom if the electrons are attracted to proton(negative to positive) then why the protons in the center(nucleus) of an atom remain combined instead of having the particles positive signs?
Question- Draw the structures of the acid form of naproxen and its sodium salt as well. Draw the structures of the acid form of ibuprofen and its deprotonated form as well.
Ice cubes at 0c are poured into a glass that contains 150g of liquid water at 20c. The contents of the glass are quietly stirred and after short time the ice melts as well as the liquid cools to 0 c. No considerable heat exchange with the environm..
An end-centered orthorhombic unit cell has a cereal-box shape with atoms at each corner and on the face of two opposite ends. How many atoms are in a unit cell
using the standard enthalpies of formation, what is the standard enthalpy of reaction? CO(g) +H2O(g) =CO2 (g) + H2 (g)
Write a balanced chemical equation for this reaction. Express your answer as a chemical equation. Identify all of the phases in your answer.
The specific gravity of iron is 7.87, and the density of water at 4.00 degree celcisus is 1.00 g/cm3 . You can use this information to find the density of iron. Find the volume occupied by 5.50 g of iron.
If the solution has the same density and specific heat as water, what is ?H for this reaction (per mole of H2O produced)? Assume that the total volume is the sum of the individual volumes. Find kJ/mol of H20
suppose a reaction mixture when diluted with water afforded 300mlof an aqueous solution of 30g of the reaction product
a flask of one litre is filled with 1.30 grams of argon gas at the temperature ofnbsp 25 degrees celsius. a sample of
The vapor pressure of ethanol at 34.7 degrees Celsius is 100mmgh, and the heat of vaporization of ehanol is 38.6 kj/ mol. What is the vapor pressure of ethanol in mm Hg at 65.0 degree celcius
Determine which is the limiting reagent and how many grams of excess reagent remain unreacted. Calculate the theoretical yield of the reaction
draw the structures of two stereoisomeric alkenes that would give 3-hexanol as the only major product of hydroboration
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