At which position does the ball have the most potential energy?
At which position does the ball have the most kinetic
energy?
At which position does the ball have about equal
amounts of potential and kinetic energy?

What type of reaction is zn + cucl2 → cu + zncl2?

Which of these conditions most likely produces an unstable isotope?

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