Question

write the balanced chemical equations for the following reactions:

Si2H6 burns when exposed to air. (Note that Si is in the same group in the periodic table as C. The states of the reactants and products need not be given.)

Answer 1

Si2H6 +O2 -> SiO2 + H20
now go balance that out

Answer 2

I got SiH6 + O2 --> SiO2 + H20
That is just my guess
Why it is correct?

Answer 3

@completeidiot Why is it correct?

Answer 4

Does combustion reaction always produce H2O ???

Answer 5

its incorrect as a balanced equation
because theres only one O2, which would make SiO2 but not H20

and yes

Answer 6

welll not really, depends on the compound, generally for organic chemicals, like long carbon chains, the resulting product would just be CO2 and H2O

Answer 7

I'll just balance it and I will ask a question :)

Answer 8

sorry for poor terminology, chemistry was never my strongest point

Answer 9

2SiH6 + 5O2 --> 2SiO2 + 6H20

Answer 10

anyways why that is correct, they stated that Si is in the same group as C
so essentially its C2H6 +O2
for combustions like these, the resultant is always C02 and H2O

so replacing C with Si you get SiO2 and H2O

Answer 11

looks right

Answer 12

ohhh thanks for that :)
so combustion always produces CO2 and H2O if the reactants have C and H in it ????

Answer 13

pretty much yes
like combusting C2H5OH, you will still get H20 and C02

Answer 14

throw any element other than H O & C, then things get a bit complicated

Answer 15

could you give me an example of combustion reaction without H20 on its product side??
or it is not possible?

Answer 16

easy, burn pure carbon

Answer 17

also without carbon ?

Answer 18

is it possible?

Answer 19

erm not sure, im not exactly an expert in this field

Answer 20

oh burning magnesium strips

Answer 21

ohh ok
Thank you for your help :)

Answer 22

what does it produce?
MgO2 ???

Answer 23

actually MgO

Answer 24

ohh I get it :)

Answer 25

you kinda need to balance out some electrons,
basically magnesium as 2 extra electron in its outer shell and oxygen has 6

the most can be 8 so yea

Answer 26

I think combustion reaction always produces oxide

Answer 27

i think you're right

Answer 28

Because there is always oxygen in the reactant side :)

Answer 29

Thanks for your help :)

Answer 30

no prob