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Chemistry, 22.06.2019 03:00, annafellows
Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone
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Chemistry, 22.06.2019 20:30, huangjianhe135
The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?
Answers: 3
Chemistry, 22.06.2019 23:00, lulprettyb
What is the most common reason for matter changing its state?
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Chemistry, 23.06.2019 00:00, kittenalexis68
How many atoms or molecules are there in a mole of a substance?
Answers: 1
1.Explain why BCl3 monomer but BH3 exist as B2H6....
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