chemical change
No, sunlight speeding up the evaporation of water is not a chemical change. It is a physical process where the water molecules transition from liquid to vapor state without any change in their chemical composition.
This is a chemical change, a photochemical reaction.
It is a physical change because the sun's rays create a physical differential not chemical relates to chemical change ie: the ice tea crystals dissolve in the water. --------- Chemical change, because fading in this case is the result of a photochemical reaction.
Pop cans are produced by physical processes.
An atomic bomb uses fission-- the splitting of atoms. It is purely a physical change, at first. Any gases produced in the air surrounding the explosion (which occurs before it touches the ground), along with the intense heat produced, causes chemical changes in the air.
I would think it to be a Physical Change. Not chemical.
A chemical change has taken place. The exposure to sunlight causes the paper to undergo a chemical reaction, breaking down the molecules in the paper and causing the color change to occur.
During a phase change, the substance transitions between different states of matter (solid, liquid, gas) without any change in the chemical composition of the particles involved. This means that there is no new substance formed and no chemical change taking place, it is solely a physical change.
Unlike a physical change, a chemical change produces new substances with properties different from those of the original substances.
Physical changes are generally easy to reverse because NO ENERGY is produced by the substance.A Chemical change cannot be reversed because ENERGY is produced by the substance forming a new substance.
That's a chemical change because the structure of the atoms are changing. Chemical features can only be viewed through chemical change, by the way.
That's a chemical change because the structure of the atoms are changing. Chemical features can only be viewed through chemical change, by the way.