Activity 1 selecciona la foto apropiadi, segun lo que oyes Only if you understand please help asap A-H answer please

Adilute aqueous potassium nitrate solution is

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

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory