Chemistry, 15.10.2019 21:10 jojo887314
Before arc welding was developed, a displacement reaction involving aluminum and iron(iii) oxide was commonly used to produce molten iron (the thermite process). this reaction was used, for example, to connect sections of iron railroad track. calculate the mass of molten iron produced when 2.28 kg of aluminum reacts with 17.2 mol of iron(iii) oxide.
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Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3
Answers: 3
Before arc welding was developed, a displacement reaction involving aluminum and iron(iii) oxide was...
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