Answer:
Death
Explanation:
Just kidding but its a toxic gas that will lead to nausea and coughing.
<em>TLDR: They should be the same by the conservation law of masses. </em>
Now it may appear as if they changed if one of the resulting products is in the form of a gas or another hard to examine and weigh. In those situations it may seem that the masses will change, but the ratio should remain constant. <em>Try looking up 3.7: Conservation of Mass - There is No New Matter on ChemLibre for more information on this topic that goes more into depth about it. </em>
The answer is the upper right Fluorine is the most electronegative.
Hmm
One mole of calcium is usually equal to 40 grams so divide 9.8 by 40 which would be 4.0 molecules