6. If they take a sample of water and they found high levels of heavy metals, the heavy metals are: (circle as many as it applies)
Solute
Contaminants
Solvent
Solution

Theoretical temperature at which molecules stop moving and no more heat can be removed from the object. kelvin: absolute zero degrees. none of the above.

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

The independent is what is changed, the dependent is was is measured or the reaction.