* Chemistrical numbers

My first aunt has a singleton daughter. She is the one who seems perfect. She is good at singing so she is solo in her high school choir. And she is also good at atheletic. She won the first in 'Riding Unicycle' competition. But nobody is perfect. One day, in her chemistry class, she was supposed to make methenal, but somehow the process was mixed with other chemicals and it blew the whole chemistry room away.