Chemistry, 25.09.2021 16:30 karena13aguirre
When 6.4g of an oxide of element X was heated and hydrogen passed over it, 3.2g of the element was produced. The empirical formula of the oxide is (O=16; X=32)
a. XO
b. XO2
c. X2O
d. X2O3
Answers: 2
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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
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When 6.4g of an oxide of element X was heated and hydrogen passed over it, 3.2g of the element was p...
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