Question

6 CO2 + 12 H2OC6H12O6 + 6 H2O + 6 O2
How many molecules of water are present in this photosynthesis reaction?

Answer 1

we see H2O after the 12 and 6
12+6 =18

Answer 2

reaction shud be..
6 CO2 + 12 H2O -------> C6H12O6 + 6 H2O + 6 O2

we see 12 molecules of water on the left and 6 on the right

so 18 molecules...