What 2 solutions could help restore the ecosystem back to normal?

When would a bouncy ball have the most potential energy

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

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