Pl will give select all the signs of a chemical change from the list below. (you may need to select more than one for full points) evaporating bubbles (gas formation) color change dissolving

The formation of bubbles and a colour change are signs of a chemical change.

One of the substances must have evolved the gas and changed into something else.

One of the substances must have changed into something else with a different colour.

Both above are chemical changes.

Evaporation and dissolving are physical changes, because the substances do not change their chemical structure in the process.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.