4. Suppose the relative humidity on a summer day is eighty-five percent. How would the air likely feel? A. very comfortable
B. very dry
C. very humid/sticky
D. none of the above

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .