Experiments were done on a certain pure substance $x$ to determine some of its properties. There's a description of each experiment in the table below.

In each case, decide whether the property measured was a chemical or physical property of $x,$ If you can. If you don't have enough information to decide, choose can't decide in the third column.

$\backslash$table$[[$property$,$experiment,$\backslash$table$[[$physical or$],[$chemical$?]]],[$C$,\backslash$table$[[$A sample of $x$ is carefully weighed and put inside a sealed calorimeter. Pure$],[$oxygen gas is injected into the calorimeter, and the mixture ignited. After all of $x$