Question

Substance 1: A yellow solid does not break down but combines with oxygen (burns) to form a strong odorous gas.
Substance 2: A clear liquid releases vapor on being heated. It leaves a white residue at the bottom of the beaker after being cooled.
Substance 3: White granules break down into a brown-colored liquid and an odorous gas upon heating.
Substance 4: A cloudy liquid turns colorless and releases vapor when heated. It becomes cloudy again on being cooled.

Based on this information, which substance is most likely an element?

substance 1
substance 2
substance 3
substance 4

Answer 1

An element does not readily break down into other components unless it is undergoing nuclear decay (which is not considered in this problem).

Answer 2

Which of these substances is shown to break down or release something?

Answer 3

substances 2,3,4

Answer 4

Good! So, which one is the element?

Answer 5

Substances 1

Answer 6

:)

Answer 7

Thanks again I really appreciate it.

Answer 8

No worries

Answer 9

Oh, but it is customary to give a medal to the person who helps out the most to show other people who give good advice. :)