Scale markings that denote equal units of measure

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

How can one make a supersaturated solution? (apex)

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