It seems like you are looking for the balancing of chemical equations. Here’s a suggested way to balance the equations you provided:
2Я + 2NE → 14 + 2N2 (depending on the context, the equation might need specification, additional context would help)
2Na + 1 Na2CO3 → 2 Na + H2O + 1 CO2
2KCl + 2H2SO4 → 2K + SO2 + Cl2 + H2O
C15 + 5KBr → 5K + 5Br2 (assuming a typical reaction)
2C3H8 + 5O2 → 8CO + 4H2O
5O2 + C → 3CO + 2CO2
2M + 3SO2 → M2SO4 + M(O2)
H2O + NaOH → Na + H2 + H2O
Please note that the exact coefficients may vary depending on the compounds involved, and without the full context or chemical identities, some assumptions were made. Please provide any additional information or correct any parts if needed!