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

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

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