In the chemical reaction below, sodium (na) and chlorine (cl) combine to form sodium chloride (nacl).
2na + cl2 → 2nacl
if the combined mass of the starting reactants is 50 grams, then the mass of sodium chloride formed once the reaction has reached completion
a.
will be exactly 100 grams.

b.
will be between 50 and 100 grams.

c.
will be exactly 50 grams.

d.
will be less than 50 grams.

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it is important to conserve water because there is very limited amount of freshwater here on earth and if we are not smart about how we use it we will only be runnning out of our supply faster than neccessarry.