one of the simplest ways to increase the dissolving rate of a spoonful of sugar in a cup of water 10ldots use a sugar cube instead of granulated sugar. dissolve the water heat the water. decrease the water

To increase the dissolving rate of a spoonful of sugar in a cup of water, one of the simplest methods is to heat the water. Heating the water increases the kinetic energy of the water molecules, which in turn increases the rate at which the sugar dissolves. This is because the increased kinetic energy causes the water molecules to move more vigorously, which helps to break down the sugar molecules more quickly.<br /><br />Therefore, the correct answer is: heat the water.