During 5th period Dylan was a beast. She resisted the forces applied by 13 other students in her class all at once. Her 13 classmates tried to knock Dylan over, each applying a force of 17 N, and she still didn’t budge. How much force was Dylan pushing back with, and how many people would it take to push Dylan if she can withstand a force of 300 N?

What are the 4 phases of matter in order of increasing engery content?

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?

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 .