Question

A fuel scientist burnt a piece of coal and a piece of wood to compare the amount of heat given off by each. Which is the correct match of the type of change happening and the property being tested during the process?

Physical change; Physical property of flammability

Chemical change; Physical property of heat of combustion

Chemical change; Chemical property of heat of combustion

Physical change; Chemical property flammability

Answer 1

Answer:

chemical change..... property of heat of combustion