A pure substance F is found to change upon heating into two new pure substances M and Y. Both M and Y may be decomposed by chemical means. From this we may conclude that:
A) F is an element, M and Y are compounds.
B) F is a compound, M and Y are elements.
C) F, M and Y are all elements.
D) F, M and Y are all compounds.

Question

Quizplus · Accepted Answer

F is a compound because it decomposes into two new substances, M and Y, upon heating. M and Y are also compounds because they can be further decomposed by chemical means.

A Pure Substance F Is Found to Change Upon Heating