last chem ?

complete each of the following synthesis reactions by writing both a word equation and a chemical equation
a) sodium + oxygen---------> ___________
b) Magnesium + Fluorine ------->_______

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  1. Magnesium + fluorine yields magnesium fluoride.
    Mg + F2 ==> MgF2

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  2. so a would be Sodium + oxygen yields Sodium Oxide?
    Na + O2 --------> NaO2?

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  3. Sodium is +1. O is -2 so the forumla for sodium oxide is Na2O. Actually, sodium + oxygen yields sodium PERoxide which is Na2O2 BUT I suspect sodium oxide may be the answer the prof is looking for. You must be the judge of that.

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