Question

what is the mass of excess reagent left if 6 grams of H2 combines with 64 grams of O2​

Answer 1

Answer:

61

Explanation:

add hydrogen and oxygen which gives u two volumes of water(gas)

now on balancing there will be 2 volumes of hydrogen and 1 vol of oxygen so we will consider 1 vol as 3 g so the vol of oxygen given is 64 and only 3 g is used so the remaining is:

64-3=61