This involves a change of state of the water. Before, during, and after the boiling, it remains water. So, since the substance doesn't change its character, the boiling of water is a physical change.
Physical change. It would become chemical when it change to Gas which wouldnt make boiling water any more
It's a physical change.
It depends on what is boiling. If you are boiling WATER, then it is NOT a chemical change, it is a physical change (change of state from liquid to gas). If you are cooking food on the stove, a chemical change is occuring. That is, the chemical bonds within the food molecules are actually changing. One way you can tell that it is a chemical change is that you can't "uncook" food, but you can condense steam back into water.
Burning is a chemical process !
No. Unlike most other cooking methods, boiling pasta is basically just getting it wet. Any time you see a color change or a phase change (between gas, liquid, or solid), you've seen a chemical change (although not necessarily a reaction in the case of a phase change).
No. Many physical processes occur by artificial means. Boiling water on a stove or freezing it in a freezer is one common example.
Natural gas, gasoline, fuel oil, coal, and LPG burning are all chemical reactions ( chemical changes ). The reactants ( fuel and oxygen ) react yielding primarily CO2 and H2O., which are different chemical species than the reactants.
It depends on what is boiling. If you are boiling WATER, then it is NOT a chemical change, it is a physical change (change of state from liquid to gas). If you are cooking food on the stove, a chemical change is occuring. That is, the chemical bonds within the food molecules are actually changing. One way you can tell that it is a chemical change is that you can't "uncook" food, but you can condense steam back into water.
it is both physical and chemical change
Burning is a chemical process !
No, chemical.
Its A physical change. When you boil water under a stove, The water evaporates and the chemical stays in the..pan or whatever you put in it.
Its A physical change. When you boil water under a stove, The water evaporates and the chemical stays in the..pan or whatever you put in it.
No. Unlike most other cooking methods, boiling pasta is basically just getting it wet. Any time you see a color change or a phase change (between gas, liquid, or solid), you've seen a chemical change (although not necessarily a reaction in the case of a phase change).
As you may know, determining whether a change is chemical or physical can sometimes be a real pain! This particular change is a hard one. If your talking about butter slightly melting on a hot day because it was left out on the counter, THAT is a physical change and is reversible by simply putting the butter into the fridge. However, melting butter on the stove and having it completely turn to liquid and turn a little brown, THAT is a chemical change and is hard to reverse... a chemical change has occurred while the butter was over the heat.
The formation of fog is a physical change, not a chemical one.
Examples: change of taste, odor, color, viscosity etc.
no
It is a chemical change. Natural gas (UK) is a mixture containing principally methane. CH4 + 2O2 -> CO2 + 2H2O