6.  which element has an atom with a total of three valence electrons?

What is the mass of each element in a 324.8 sample of co2

How does a noncompetitive inhibitor reduce an enzyme’s activity?

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