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Chancroid is the sexually transmitted disease caused by which organism?

(WCSP25) Ranexa is a pharmaceutical used to treat angina (chest pain due to lack of oxygen to the heart).  Using its structure is below, answer the following prompts:   a.  The pair(s) of orbitals that overlap to form the bond indicated by A is(are) [drop2], [drop3]. b. The hybridization about atom B is [drop4]. c. The molecular geometry of atom C is [drop1].

(WCSP25)  The cross sections of three different ionic compounds (labeled Compound 1, 2 and 3) are displayed in the figures below. In the figures, the charge on each ion is indicated, and the diameter of each circle reflects the diameter of each ion.    Rank these compounds in order of increasing melting point. lowest [drop1] < [drop2] < [drop3] highest

13. (WCSP[x], 6 points) Draw three constitutional isomers of the molecular formula of C5H10O.   Isomer A should include a aldehyde. Isomer B should include an alcohol. Isomer C there are no requirements!  Get creative! Give the number of sigma bonds in Isomer A in the box below.   

The angle of elevation from a point 92.3 ft from the base of a building to the top of the building is 

Use identities to find

Find the values of sine, cosine and tangent functions for the angle 

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. Two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is

Find the values of sine, cosine and tangent functions for the angle

From a point A on a line from the base of Washington Monument, the angle of elevation to the top of the monument is