Which of the following observations demonstrates that a solid sample is a compound?
A)It cannot be broken down into simpler substances by chemical methods.
B)It cannot be broken down into simpler substances by physical methods.
C)Heating the substance causes it to melt,then to boil.
D)Heating the substance causes no visible color change.
E)Crushing the sample does not affect its other properties.

Question

Quizplus · Accepted Answer

Compounds cannot be broken down into simpler substances by physical methods because they are made of two or more elements chemically combined. Physical methods only change the form or state of a substance, not its chemical composition.

Which of the Following Observations Demonstrates That a Solid Sample