2H3PO4 + 3Na2SO4 → 2Na3PO4 + 3H2SO4
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Jamal is 2 miles away from his home.
Option B.
<h3><u>Explanation:</u></h3>The initial distance of Jamal from his home is 8 miles. He needs to return home from his trip.
The speed that Jamal kept was constant for 30minutes and he drove at a speed for 12 miles per hour.
Speed of Jamal = 12 mph.
Time of travel = 30minutes =0.5 hours.
So distance traveled by Jamal = miles. = 6miles.
Initial distance of Jamal = 8 miles.
So final distance = miles = 2miles.
So Jamal is 2 miles away from his home.