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PIMSO 2022 - Science - Grade 6 - National Round Question 7

PIMSO Science · PIMSO 2022 - Science - Grade 6 - National Round

Question 7

Biofuels are sources of energy from renewable sources. One example is bioethanol, which is ethanol sourced from fermentation of plant products. In one experiment, 1.00 g of liquid ethanol was found to burn with 2.08 g of gaseous oxygen. Like most hydrocarbons, this combustion process produces water and gaseous carbon dioxide. What is the expected total mass of the products from this reaction?
  1. 2.08 g
  2. 1.00 g
  3. 3.08 g
  4. None of the above
  5. Cannot be determined from the given information