7.AH, for the formation of rust (Fe2O3) is -826 kJ/mol. How much energy is involved in the formation of 5.00 grams of rust?
66.0)
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25.9)
of
66.0 kJ
25.9 kJ
brium

If two objects at different te,peraure are in contact with each other what happens to their temperature

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 .

What is the mass in grams of 12.26 ml of acetone