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Q1.What are diatomic molecules?
Q2.What are homonuclear or heteronuclear diatomic molecules?
Q3.Name the gases that form stable homonuclear diatomic molecules.
Q4.Which are monatomic gases?
Q5.What are elemental gases?
Q6.How many electrons are present in outer shell of sodium atom?
Q7.What happens when sodium metal reacts with a non metal?
Q8.How sodium atom becomes sodium ion?
Q9.How many electrons and protons are present in sodium ion?
Q10.What is the sign on sodium ion?
water with a mass of 0.500 rm kg at 15.0circ rm c is mixed with 0.800 rm kg of water at 35.0circ rm c. what is the
calculate the molarities of solutions that contain the following masses of solute in the indicated volumes a 25.8 g of
Write equations for the mechanism for saponification of methyl benzoate, begin with nucleophillic attack of hydroxide ion on the carbony group of the ester.
A compound contains only carbon, hydrogen and oxygen. Combustion of 7.30 mg of the compound yields 10.68 mg of carbon dioxide and 4.37 mg of water. What is the empirical formula of this compound
When a 5.60 g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee-cup calorimeter, the temperature rises from 22.3 degrees Celsius to 41.6 degrees Celcius.
Explain what would the reaction quotient Q be if the volume of the container decreased by a factor of 3.541 for the subsequent reaction.
albr3 is sold as a solution in ch2br2. this is a rather exotic solvent and somewhat difficult to work with as well
Neopentyl alcohol, (CH3)3CCH20H,cannot be dehydrated to an alkene without rearrangement. What is the chief product of dehydration?
Consider two different solutions of the same UV-absorbing compound. Upon UV-analysis, Solution B gave an absorbance of 1.5 and Solution A gave an absorbance of 0. 5 at the same wavelength. Solution B is higher in concentration by what ratio (or pe..
Calculate the value of Ecell (Standard reduction potentials) for the reaction above. Shwo your work and explain why this value implies that the reaction is product favored.
What does the heat of dissolution measure?
Classify each of the following as a compound, a homogeneous mixture, or a heterogeneous mixture. (a) wax (c) air (d) gasoline (e) iron(II) sulfide
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