Prereq check: another u-sub example and reversing the power rule.  Remember we often need to reverse the power rule when integrating, so for example we should rewrite the following as a power function:

Concept check: do this after taking notes on 1.1 One of the simplest differential equations is: . A solution to this would be a function y so that the derivative of y equals y. Of course works. But we also saw that also works for any constant C, giving the general solution to the DE because it gives all solutions as you vary over all C values. Let’s change the equation a bit: what is the general solution to: ?

Select the shortest bond in the following group

In which set are all three species isoelectronic?

The complete combustion of acetone (C₃H₆O) is shown below: C3H6O+4O2→3CO2+3H2O Using the bond enthalpies provided, estimate the heat of combustion (ΔH°) of acetone in kJ/mol. Bond Enthalpy (kJ/mol) C–H 412 C–C 348 C=O (in ketones) 743 O=O 498 C=O (in CO₂) 799 O–H 463

What is the abbreviated orbital diagram for S?

What is the formal charge on the C atom in CN- ?

Portions of electromagnetic waves M, N, and P are represented below (not drawn to scale):

A compound has a high melting temperature, does not conduct electricity in the solid state,  and is brittle. What type of bonding does this compound mostly experience?

Louis _______________ (promettre) de faire ses devoirs à temps.