| A heavy silvery toxic liquid metal element is ____ . |
aqueous |
| Salt water is a both a mixture and an ____ solution. |
graphite |
| A solute is dissolved in a solvent to form a ____. |
insoluble |
| Water is the ____ in all aqueous solutions. |
mercury |
| Glass, rocks, oils, and plastics are water ____. |
physical |
| Pure diamond and pure ____ contain only carbon atoms. |
solution |
| An atom is mostly ____ with a tiny dense nucleus. |
solvent |
| Sugar dissolving and ice melting are ____ changes. |
space |
