For the balanced equation shown below, if the reaction of 65.9 grams of C2H4O produces a 75.9% yield, how many grams of H2O would be produced? Equation: 2C2H4O +5O2 --> 4CO2 + 4H2O

Actual Yield () x 100 = %
Theoretical Yield ( )

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy