Determine δh for reaction 4 from these data: reaction 4: n2h4 (l) + 2h2o2 (l) → n2 (g) + 4h2o (l) δh 4 = ? reaction 1: n2h4 (l) + o2 (g) → n2 (g) + 2h2o (l) δh 1 = -622.3 kj reaction 2: h2 (g) + 1/2o2 (g) → h2o (l) δh 2 = -285.8 kj reaction 3: h2 (g) + o2 (g) → h2o2 (l) δh 3 = -187.8kj
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Chemistry, 22.06.2019 04:00
You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present
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Chemistry, 22.06.2019 09:30
Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump
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Chemistry, 22.06.2019 20:00
State one important difference between a physical change and a chemical change?
Answers: 1
Determine δh for reaction 4 from these data: reaction 4: n2h4 (l) + 2h2o2 (l) → n2 (g) + 4h2o (l)...
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