a . C(graphite) +0.5O 2 (g) --> CO(g) b . 2H 2 O 2 (aq) --> 2H 2 O(l) +O 2 (g) c

Question

a. C(graphite) +0.5O2(g) --> CO(g) b. 2H2O2(aq) --> 2H2O(l) +O2(g) c. CH4(g) +2O2(g) --> CO2(g) + 2H2O(g) d. 2Na(s) + 2H2O(l) --> 2NaOH(aq) + H2(g)

What is the enthalpy of formation of CO(g) in kJ? 2CO(g) + O2(g) rightarrow 2CO2(g). ?H reaction = -566 kJ ; ?H CO2(g) =-393.5 kJ/mol. For which of the following reaction is the enthalpy of formation of the compound equal to the ?H of reaction? Choose one answer. When 110 J of energy are added to a sample of gallium that is initially at 25.0 oC, the temperature rises to 47.0 degree C. What is the volume of the sample in cubic centimeter?

Explanation / Answer

a) C(graphite) + 0.5O2(g)------------> CO(g)

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