The oxide that remains unchanged when heated in hydrogen ...
The oxide that remains unchanged when heated in hydrogen is?
CuO
Fe2O3
PbO2
ZnO
Correct answer is D
Zinc oxide doesn't react to hydrogen gas because the reaction is not spontaneous.
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The correct name of the compound with the above structural formula is ...
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Which of the following statements is not true of tin? it ...
N2O4(g) ↔ 2NO2(g). Increase in total pressure of the equilibrium reaction above will...