Which of the following statements is not true of the process of fusion? A. Two nuclei collide and stick together.
B. Fusion produces more energy than fission.
C. It takes a lot of energy for two nuclei to get close enough to fuse.
D. The electrostatic force overcomes the strong nuclear force.

Why are pipes bursting in the in extremely cold weather?

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the 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 .