a. Dew is dried by the sun is a physical change because the water is changing from a liquid to a gas, but the composition of the water remains the same.
b. A dark cloth is faded by the sunlight is a physical change because the color of the cloth is changing, but the composition of the cloth remains the same.
c. Grape juice is converted to wine is a chemical change because the composition of the grape juice is changed to form the wine.
d. Soap is dissolved in water is a chemical change because the soap molecules are breaking down and mixing with the water molecules to form a new solution.
Are the following physical or chemical:
a. dew is dried by the sun
a dark cloth is faded by the sunlight
c. grape juice is converted to wine
d. soap is dissolved in water
a.physical
b.physical
c.chemical
d.chemical
Physical changes are those in which the substance is not changed. Chemical changes are those in which the substance is changed. For example, water boiling and turning into steam is a physical change. The water, in the liquid state, changed to vapor. It still is H2O. It changed states (liquid to vapor) but it did not change in composition. Now you go through your list. We shall be happy to check your answers if you wish.
a. physical
b.physical
c. chemical
d. chemical
Are the following physical or chemical:
a. dew is dried by the sun
a dark cloth is faded by the sunlight
c. grape juice is converted to wine
d. soap is dissolved in water
please explain why you think these are physical, physical, chemical, chemical.
1 answer
1 answer