How many moles of water are produced if the reaction begins with 7.50 moles of NH3? Show your work *
4 NH3 + 5 O2 —> + 6 H2O + 4 NO

Jorge planted flowers in his garden he planted one row of 12 tulips and one row of 36 daisies george's friend kylie has a garden with 75 flowers in it kylie's garden only contains tulips and daisies. is it possible for kylie‘s garden she have the same ratio of tulips to daisies as george's garden?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?