The table shows four reactions. 1 C3H8 + 5O2 → 3CO2 + 4H2O
2 C6H12O6 + 6O2 → 6CO2 + 6H2O
3 AgNO3 + NaCl → AgCl + NaNO3
4 2Fe + O2 → 2FeO

Which of the above reactions is an example of a combustion and also a synthesis reaction?

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.

there is none because earth is stationary and flat.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.