Question

balanced the equation Pb(NO3)2 + K2CO3 →
balanced the equation AgClO3 + SrI2 →
balanced the equation C7H8 + O2 →

Answer 1

@Kira_Yamato

Answer 2

Pb(NO3)2 + K2CO3 → PbCO3 + 2 KNO3
2AgClO3 + SrI2 → 2 AgI + Sr(ClO3)2
C7H8 + 9O2 → 7 CO2 + 4 H2O

Answer 3

@Kira_Yamato No direct answers are allowed!
Teach the asker step by step
-why these products are formed
-how to balance it
This is what is called 'Help'
Giving direct answers is like giving free opportunity to cheat.
The asker will not learn a thing out of it.

So please next time - don't do the whole thing yourself, let the asker do something
+ if the asker has no clue whats going on - in that case you can explain how and what happens to make it clear for the asker :)