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Mendeleev is considered the father of the periodic table. He was so advanced that he left space for elements not discovered. Explain Mendeleev's logic in leaving blank spaces then describe how the modern periodic table came to be. (YOUR ANSWER MUST BE COMPLETE AND THOROUGH FOR FULL CREDIT)
Which choice is closest to the longest wavelength that will remove an electron from the n=3 level of the hydrogen atom? (hint: what would you use for the value of nfinal when the electron is completely removed from the atom?)
What is the boiling point of an aqueous solution containing 468g of sugar in 350 g of water. Boiling constant of water is 0.53 o/m
Write the equation for a nonspontaneous reduction-oxidation reaction involving the transfer
what is the ksp value of potassium hydrogen tartrate at 10 degree celsius oc 22oc 35oc and 50oc? what is the enthalpy
Henry constant(KH) of CO2 in water at other temperature(10C,20C,30C)?
How many grams of water are needed to react with 75.0 g CaCN2?
Problem- Sketch a cooling curve for water do not confuse with phase diagram. Make sure it includes: labels for the x and y axis as well as the specific temperatures to indicate a phase change.
Question- Consider the neutral form of the amino acid histidine, given a pH of 3.00, how many mL of 0.050M HClO4 should be added to 25mL of 0.040M Histidine
A 1.33 M solution of citric acid (H3C6H5O7) in water has a density of 1.10 g/cm3. Calculate the mole fraction of the citric acid.
Name and draw the product formed with HNO3 and Alpha-D-gluccopyranose. Draw and indicate the glycosylic bond D-glucopyranose, and D-glucopyronose and D-fructofuranose
What would be the effect of increasing the temperature of a gas chromatography column during the analysis of a gasous mixture if isothermal chromatography is done
Starting from 1-methylcyclopentene and using other reagents and number of steps that you need, synthesize the following compounds.
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