Question

How many atoms of hydrogen are present in the reactants and in the products?

Answer 1

Same equation as before?

Answer 2

yep, we gotta use the same equation 4 questions 1-3

Answer 3

Sure so we have:
6CO2 + 6H2O → C6H12O6 + 6O2

So now we want the atoms not the molecules like before. So I want to take a super fast example with another molecule before you start. The following molecule is ethanol and I want you to try tell me how many hydrogen there is in it:
C2H6O

Answer 4

6

Answer 5

Perfect. What if I wrote: 2 C2H6O

Answer 6

6 again?

Answer 7

Yeah this is the tricky part. If we write a number in front of a chemical we mean that chemical that number of times.
So for example:
2 C2H6O would be 12 hydrogen
3 C2H6O would be 18 hydroge
and so on.

Answer 8

Somehow understandable?

Answer 9

ok

Answer 10

so what now?

Answer 11

Good. Now then lets return to real question:
6CO2 + 6H2O → C6H12O6 + 6O2
How how many hydrogen do we got on both sides?

Answer 12

14... i think

Answer 13

Close, but not correct try again.

Answer 14

12?

Answer 15

Exactly. :)

Answer 16

ha

Answer 17

Not that hard so far huh? :)

Answer 18

gonna open a new question