Chemistry, 12.08.2020 05:01 Gghbhgy8716
For which one of the following reactions will the enthalpy change be approximately equal to the internal energy change?
A. H2 + I2 β 2HI
B. PCl5(g) β PCl3(g) + Cl2
C. 2H2O2 β 2H2O2 + O2
D. C(s) + O2(g) β CO2(g)
Answers: 1
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Which statement best describes what happens when molecular compounds melt
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The zinc within a copper-plated penny dissolves in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric acid can reach the zinc). the reaction between the acid and the zinc 2h+(aq)+zn(s)βh2(g)+zn2+(aq) . when the zinc in a certain penny dissolves, the total volume of gas collected over water at 25 Β°c is 0.947 l at a total pressure of 743 mmhg . (vapor pressure of water is 23.78 mmhg at 25 Β°c .) what mass of hydrogen gas is collected? answer in appropriate significant figures
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Chemistry, 23.06.2019 19:30
Which of the following is an example of ionic compound? a) sicl4 b) hcl c) cacl2 d) ccl4
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For which one of the following reactions will the enthalpy change be approximately equal to the inte...
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