How many grams of water vapor is produced when 20.5g of hydrogen gas reacts with oxygen gas? ( write a complete balanced equation and solve)

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Which statement can best be concluded from the ideal gas law?

2-bromo-2-methylbutane undergoes an e1 elimination reaction in the presence of ethanol. in the next reaction only one of the possible products is represented. although the product shown is not the major product of the reaction, notice that there is more than one way it can be produced. complete the mechanism and draw the missing substances.