Jason observes a process in an industrial facility. The process begins by mixing the first and second
substances; after a while, the third substance is also observed.


Based on the data in the table, which statement describes the process that is occurring?
A. A physical change occurs when the first two substances combine.
B. A chemical change occurs when the first two substances combine.
C. A change occurs at the macroscopic, observable level, but no change occurs at the microscopic,
molecular level.