How many grams of NO will be created when 55.0 grams of NH3 react with excess O2? NH3 + 02 - NO + H2O

Arecipe calls for 1.2 cups of oil. how many liters of oil is this?

Find the mass in grams of 1.37x1020 particles of h3po4

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.