What Compost rotting and Roasting a marshmallow have in common are:
A. Both are chemical changes.
C. Both conserve mass.
A chemical change give rise to the chemical properties of matter.
Hence, a chemical change is typically characterized by a change in chemical composition and the formation of a new substance.
Generally, the chemical properties of a chemical compound (substance) are based on the following;
Compost rotting is a chemical change that involves the mixture of decayed organic substances such as dead leaves, vegetables, or manure, which are added to the soil to fertilize it.
Basically, compost rotting is a process which cannot be reversed to its original state and as such it is a chemical change.
Roasting a marshmallow involves the use of heat to melt the sugar on a marshmallow.
Hence, the roasting a marshmallow is a chemical change because it is characterized by a change in chemical composition.
In conclusion, both compost rotting and roasting a marshmallow are chemical changes and would both conserve mass in accordance with the Law of Conservation of Energy.
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