In order to calculate the mass of Oxygen needed to react with 5g of Diethylzinc, what other information will we need in
addition to the chemical equation?

Evaluate this exponential expression,8. (2 + 3)2 – 42

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

No copying 15 pts how does a free-body diagram tell you about the net force on an object?