Chemistry: Last Call
What do a mole of sodium and 39.10 grams of potassium have in common?  (At least two things.)


Balance the following equation:  Fe + O2 ->  Fe2O3

If I have 3 grams of hydrogen, how many grams of water will I make?

How many grams of MgO are in 3 liters of 2.0 M solution of MgO and water?

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