Chemistry, 17.10.2019 18:30 galaxyomg661p0edpt
What is the half-life of a 0.5 g sample of radioisotope that decayed to 0.125 g in 9.6 min?
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Modern weaponry has increased the number of deaths in wars and violent conflicts.
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Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .
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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?
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Chemistry, 22.06.2019 23:00
Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry
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What is the half-life of a 0.5 g sample of radioisotope that decayed to 0.125 g in 9.6 min?...
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