Carbon (II) oxide
Carbon (IV) oxide
Oxygen
Nitrogen
Correct answer is C
2CO + O2 → 2CO2
50cm3 → 25cm3
20% * 150 = 30cm3
30 cm3 is the volume of oxygen available for the reactions. But only 25 cm3 is required; therefore O2 is in excess
What is the atomic number of Iridium? ...
The enzyme that catalyses the conversion of glucose te ethanol and carbon (IV) oxide is ...
Alkanoates are produced from alkanols by ...
The reddish–brown rust on iron roofing sheets consists of ...
Ethyne is passed through a hot tube containing organo-nickel catalyst to produce ...
The pH of water is 7. What is the pH of orange juice? ...
An oxide XO2 has a vapour density of 32. What is the atomic mass of X? ...