calculate δh∘rxn at 15 ∘ c. (assume that δh∘ and δs∘ do not change too much within the given temperature range.)

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe mouth. technician a says that if the paper is vibrating due to a "puffing" output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being drawn toward the tailpipe, this could indicate burned exhaust valves. who is correct? a. technician b b. both technicians a and b c. technician a d. neither technicians a or b

The solutions to the inequality y ≤ 2x − 4 are shaded on the graph. which point is a solution? p

True or falsethe right to privacy is clearly written out in the constitution