Chemistry, 17.08.2021 18:10 danielhall
Đốt cháy hoàn toàn 12,9 gam hỗn hợp gồm Vinyl axetat và metyl acrylat cần dùng a mol O2, thu được CO2 và H2O. Giá trị của a là:
Answers: 2
Chemistry, 22.06.2019 14:50
Which of the following is most likely true about water in chemical solutions?
Answers: 1
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
Chemistry, 23.06.2019 03:30
In chemistry, the type of an atom (what element it is) is determined by: a) the number of protons it contains in its nucleus.b) the number of neutrons it contains in its nucleus.c) the number of protons it has in a cloud around the nucleus.d) the number of neutrons it has in a cloud around the nucleus.e) the number of electrons it exchanges with its neighbors.
Answers: 1
Chemistry, 23.06.2019 14:00
Which word refers to the smallest functional unit of living thing
Answers: 1
Đốt cháy hoàn toàn 12,9 gam hỗn hợp gồm Vinyl axetat và metyl acrylat cần dùng a mol O2, thu được CO...
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