Elemental Composition of Pure Substances Practice Test

Which of the following is a correct name for the compound, ?

I: Potassium bicarbonate

II: Potassium percabonate

III: Potassium hydrogen carbonate

Each circle represents an atom and each different color represents a different kind of atom. If two atoms are touching then they are bonded together as a compound.

Which of the following describes the contents of the given image?