The answer is A, hope it helps!
Since the colors moved faster in the hit water, it means that the water molecules in the hot water move faster than the molecules in the cold water.
Your answer is Gallium.
Hope this helps (:
The normal boiling point<span> of </span>ethanol<span> is 78.4 degrees C and, at thistemperature, </span>the vapor pressure<span> is 101325 Pascals (Pa) or 760manometric units
thx hope this helped bye.</span>
