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[[chem whiz]]
What perfect tie and long sleeve pair should I use?
I have an upcoming formal party that requires formal attire. Actually the theme is "Awards Night". I'm a bit confused on what tie to use. Either maroon, dark blue or baby pink. My first choice is the baby pink and I still don't know what long sleeve color should I equip with it together with a black suit and slacks. Can you help me out? And If I choose the maroon or the dark blue tie, what perfect long sleeve color should I pair with them respectively? (If possible, provide some images!) Fashion emergency for 10 points. :)
2 AnswersFashion & Accessories1 decade agoWhy is it necessary to cover the developing chamber tightly during the development of a chromatogram?
10 points for a satisfying and comprehensive answer. :)
2 AnswersChemistry1 decade agoOrganic Chem Lab! :)?
What characteristics must a substance possess for it to be separated from a heterogeneous mixture by steam distillation?
1 AnswerChemistry1 decade agoOrganic Chem Lab Question.?
What is the advantage of employing steam distillation in extracting oil? Why can't we just press the oil out of the sample or extract it directly with an organic solvent? :)
2 AnswersChemistry1 decade agoWhy can melting point be used as an index of purity?
Please explain with proficiency and clearness. Thanks!
1 AnswerChemistry1 decade agoHow does recrystallization free a substance from impurities?
Explain how each step in recrystallization contributes to the removal of the impurities.
1 AnswerChemistry1 decade agoPhysics Question! help pls.. 10 pts. ö?
A block of iron having a mass of 100 gm. causes a spring to stretch 39.2 cm. If the spring with this mass attached is set into vertical oscillation with an amplitude of 15.0 cm, what is the period of the motion? Neglect the mass of the spring. What is the maximum speed of the block?
-xoxo. ö
3 AnswersPhysics1 decade agophysics.. 10 points for sure with solution...?
7. The weight on a locomotive drive wheel is 10.0 tons. If the coefficient of kinetic friction between the drive wheel and brake shoe is 0.20 and the coefficient of static friction between the wheel and the rail is 0.30, find the normal brake-shoe force that will produce the maximum retarding force on the locomotive.
2 AnswersPhysics1 decade agophysics for 10 points..?
A 120-lb block is placed on a plane inclined at an angle of 35°. The coefficient of static friction is 0.25; the coefficient of sliding friction is 0.15. What force parallel to the plane is necessary to (a) hold the block from sliding down the plane; (b) pull the block up the plane with uniform speed?
1 AnswerPhysics1 decade agophysics help.. 10 pts.?
1. If by some suitable mechanism the falling body had been given an initial downward push instead of being released, would the resulting observed value of g have been different?
2. What would be the appearance of the speed-time curve if the falling body were so light that the effect of air friction could not be neglected?
3. What would be the effect upon the speed-time graph if one of the points of the trace were missing and the omission were unnoticed?
just answer as many as you can! i'll appreciate it. thanks!
4 AnswersPhysics1 decade agoChem Question >> need help!?
Metallic iron crystallizes in a cubic lattice. The unit cell edge length is 287-pm. The density of iron is 7.87-g/cc. How many iron atoms are there within a unit cell?
pls. show each step!
1 AnswerChemistry1 decade ago10 points, cool easy chem..?
How many grams of NaCl must be added to a liter of H2O at 1 atm to raise up the boiling point by 2 degree celsius?
Is this a typical amount of salt you might add to cooking H2O?
1 AnswerChemistry1 decade ago10 pts easy chem question! help guyz.?
How many grams of NaCl must be added to a liter of H2O at 1 atm to raise up the boiling point by 2 degree celsius?
Is this a typical amount of salt you might add to cooking H2O?
7 AnswersChemistry1 decade agoExplain why the ground-state electron configurations for chromium & copper are different from the expected.?
thankz to those who could contribute!
2 AnswersChemistry1 decade agoWhich of these species have the most no. of unpaired electrons; B, Ne, P, Sc, Mn, Se, Zr, Ru.?
additional: Cd, I, W, Pb, Ce, Ho, S+, S or S-? Show how you arrived at your answer.
2 AnswersChemistry1 decade ago7. The H- and helium atom both have two 1s electrons. Which of the two species is larger? Explain.?
please help! (",)
2 AnswersChemistry1 decade agoWhy do Oxygen forms compounds, under appropriate conditions, with every other element in the periodic table?
except neon and helium.
1 AnswerChemistry1 decade agoWhy do elements that have high ionization energies usually have more positive electron affinities?
please help! chemists right there!
1 AnswerChemistry1 decade ago