How many bugs will you collect in five minutes
Imagine you are driving at speed 60 mph through air filled with bugs at concentration 1 per cubic meter. The windshield is a flat panel of area 2 m^2, perpendicular to the ground. How many bugs will you collect in 5 min?
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Using formal charges, draw the resonance form from among all the Lewis structures that is most important in describing BeCl2
When atoms of the hypothetical element X are placed together, they rapidly undergo reaction to form the X2 molecule. Is the bond energy of X2 a positive or a negative quantity? Why?
What is the highest energy transition state for the hydration of 1-methylcyclohexene withpartial bonds
An unknown solution forms a white precipitate when treated with 6 M HCL. The precipitate is incompletely soluble in hot water but dissolves completely in NH3. What ion(s) are definitely present
The best available balances can weigh amounts as small as 10-5 g. If you were to count out carbon atoms at the rate of two per second, how long would it take to count a pile of atoms large enough to weigh (10-5g)?
Complete the following table by calculating the missing entries. In each case indicate whether the solution is acidic or basic. pH pOH [H+] [OH -] acidic or basic
Draw the Lewis dot structure for the HI molecule. Give the shape of the molecule in electron-domain geometry and molecular geometry.
What type of solid (e.g., molecular or metallic) would you expect each of the following substances to form (and explain why): (i) HCOOH; (ii) CaF2; (iii) Xe; (iv) K; (v) SiC; (vi) NH4Cl; (vii) MgO.
How many orbitals are there in a atom with the following combinations of quantum numbers? A). n=3 l=1 B). n=4 l=2 ml=2
The viscosity of H2 at 0 degrees celsius and 1 atm is 8.53 uPa s. Find the viscosity of D2 at 0 degrees celsius and 1 atm
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