Which of the following is a single replacement reaction? ca(oh)2 + h2so4 → caso4 + 2h2o ch4 + 2o2 → co2 + 2h2o h2o+ co2 → h2co3 fe + 3nabr → febr3 + 3na

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver

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 .