How many grams of SO3 are produced when 20.0 g FeS2 react with 16.0 g O2 according to this balanced equation?(Hint: Determine the limiting reactnant first.) 4FeS2 + 15O2 = 2Fe2O3 + 8SO3

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

What is the temperature of 0.750 mol of a gas stored in a 6,850 ml cylinder at 2.21 atm? . 2.95 k 5.24 k 138 k 246 k

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.