Chemistry, 22.08.2019 17:10 crybaby222psyc
A34.1-kg mass of copper is melted to be cast into a graphite mold at a copper pipe foundry. if the solid copper starts off at the normal melting temperature of copper and the liquid copper is put into the mold at the crystallization point of copper, how much heat is added to melt the copper?
Answers: 3
Chemistry, 21.06.2019 21:10
When the volume and number of particles of a gas are constant which of the following is also constant
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Chemistry, 22.06.2019 05:00
Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?
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Chemistry, 22.06.2019 20:00
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 .
Answers: 3
A34.1-kg mass of copper is melted to be cast into a graphite mold at a copper pipe foundry. if the s...
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