Powdered chocolate would dissolve fastest since it's the smallest breakdown of it, however, it may not be the best tasting option. Depends what you're trying to do.
Milk chocolate because it includes more sucrose.
i think its m and ms since it has chocolate in it- and chocolate melts at room temperature.
Regular
The temperature
Milk chocolate - I did the experiment at school
Salt dissolves faster in heated water. Sugar dissolves faster in regular water.
Salt dissolves faster in heated water. Sugar dissolves faster in regular water.
baking soda dissolves faster than sugar and salt.
The heat seperates the molecules making the powder dissolve quicker.
i think laundry detorgent liquid dissolves faster
Plane chocolate will melt faster because it has nothing in it and it will absorb more heat.
regular mint dissolves faster because regular mints has sugar