How many grams of O are in 675 g of Na2O

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

The number at the end of an isotope’s name is the number.

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