The equation shows a cracking reaction. Hydrocarbon X has the formula CxHy\text{C}_{x}\text{H}_{y}CxHy.
C13H28→C7H16+2CxHy\text{C}_{13}\text{H}_{28} \rightarrow \text{C}_{7}\text{H}_{16} + 2\text{C}_{x}\text{H}_{y}C13H28→C7H16+2CxHy
Calculate the values of x x\,x and yyy.
Hydrocarbon X is shaken with bromine water.
Explain the observation expected.