You have four beakers. put in order from least heat energy to most heat energy. a - 500 ml 70 celsius b - 250 ml 50 celsius c - 250 ml 20 celsius d - 500 ml 20 celsius

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