Answer:
Explanation:
a)C₆H₁₂O₆ = 2C₂H₅OH + 2CO₂
180g 92g 88g
180g glucose gives 88g carbon dioxide and 92g ethanol
200g glucose gives 88/180 x 200 co₂ and 92/180 x 200 g ethanol
ethanol 102.22g , CO₂ 97.77g
b) No change in mass after fermentation if we take into account mass of all the product.
c) ethanol produced =102.22g
200
Answer:
II) This is because Fe₂O₃ is reduced to Fe and CO is oxidized to CO₂
Explanation:
The equation II which is Fe₂O₃ + 3CO → 2Fe + 3CO₂ is the only exclusive oxidation-reduction reaction since, Fe₂O₃ is reduced to Fe by the removal of oxygen and CO is oxidized to CO₂ by the addition of oxygen.
Equation I is a hydrolysis reaction while equation III is an acid-base reaction. There is change of oxidation number in equations I and III, but they are not exclusively oxidation-reduction reactions.
A reaction that gives off heat energy is called Exothermic. (Answer).
A reaction that absorbs heat from the surroundings is called endothermic.