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mundane

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  1. I just learned that there are three kinds of overlapping (positive, negative and zero). I don't thoroughly understand the concept of different signs in orbitals and their overlappings. What does difference would it make if the signs are different (negative overlapping happens) when they don't really play a significant role? Could someone explain how waves and orbital shapes along with overlapping in brief?
  2. How do I draw these? I need 15 shapes of d orbital and 21 shapes of f.
  3. As you see in the first question -NO2 on ortho causes inductive effect and creates a hydrogen bonding with H in COOH and is considered to be stronger acid than others. In the second question, the -NO2 again shows I- and H bonding but is less acidic. I don't get how the latter one isnt the strongest.
  4. how would I name these?
  5. I was wondering why we need substances which contain acid in acidity. Can someone help me out?
  6. the mole ratio of acid: salt in production of an acidic buffer solution is between 1/10 to 10/1. 5mol HCOOH + 5mol KOH isn't a buffer solution, why? 1mol HCOOH + 1mol HCOOK is a buffer solution, why?
  7. why is the compound non aromatic despite it having resonance?
  8. great explanation yet I failed to understand as to why COOH being the strongest couldn't overcome the inductive effect of Cl. please clarify!
  9. so the decreasing order of -I effect is NO2>CN>F>COOH>Cl>Br..... In chloro acetic acid, chlorine pulls the electrons towards itself rather than COOH, why? isn't COOH more strong than Cl? please help me out!
  10. could you be more specific? like how do alcohol and oil work together?
  11. why does the fragrance of the perfume last longer if we spray it on the part of our body where we have applied non fragrant lotion or vaseline?
  12. oh! now I get it! thanks alot! thanks for the explanation, bud!
  13. In G1 and G2, one R and one H are attached on the top, yet only G2 shows isomerism. The diether ring in G3 isn't symmetrical either, yet it doesn't show GI.
  14. in that case, please look at figure 1 and tell me why can't it show GI while figure 2 can.
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