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
Which of the following substances cannot be classified as a heavy chemical? ...
The following statements are correct except ...
Detergents are better than soaps for washing in hard water because ...
2H2O (l) + 2F2(g) → 4HF(aq) + O2(g). In the reaction above, the substance that is being reduced i...
2-methylbut-2-ene has the structure ...
Which of the following compounds is a basic salt? ...
What is the following compounds will not decompose when heated strongly ? ...
Which of the following reagents could be used to distinguish between propan-1-ol and propa...