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.
What is the atomic number of Nobelium? ...
\( ^{235}_{92}U + ^1_0n → ^{145}_{56}Ba + ^{88}_{36}Kr + 3^1_0n + Energy \) The equation above ...
The situation obtained when a perfect gas expands into a vacuum is ...
Polyvinyl chloride is used in the production of ...
Which of the following is not decomposed by heat?...
In which of the following is the oxidation number of nitrogen zero? ...