Which of the following represents a chemical change? mowing of grass sublimation of ice dissolving sugar in water charring of a marshmallow

Mowing Grass: Physical, the grass easily grows back

Sublimation Of Ice: Physical, sublimation is when the ice goes from solid to gas and there is no reaction

Dissolving Sugar In Water: Physical, the sugar is still there if the water is gone you can see it (not if you pour it out once the water evaporates you can see it)

Charring Of A Marshmallow: Chemical, flammability is a chemical property, and if you use a flame to char the marshmallow then it is a chemical change.

ANSWER: D, charring of a marshmallow