• The law of definite proportions states that a given chemical compound always contains the same elements in the exact same proportions by mass.
  • For example, any sample of pure water contains 11.19% hydrogen and 88.81% oxygen.
  • By knowing the exact composition of carbon dioxide, we can make predictions as to the effects of different chemical processes.Use the resource below to answer the questions that follow.
  • The answers will help you understand the science behind electricity and the law of  definite proportions.
Select from the frequently asked questions below