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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.
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Is water boiling in a pan a physical or chemical 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.
Why is a burning gas in a a stove a physical change?
Burning is a chemical process !
Is heating pasta a chemical or physical change?
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).
Do physical changes occur in natural processes only?
No. Many physical processes occur by artificial means. Boiling water on a stove or freezing it in a freezer is one common example.
Is is a physical or chemical change when natural gas burns in a stove?
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.
Is water boiling in a pan a physical or chemical 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.
How does LPG gas burning on gas stove involve chemical and physical changes?
it is both physical and chemical change
Why is a burning gas in a a stove a physical change?
Burning is a chemical process !
Is An apple turning brown and food burning on stove is this a physical change?
No, chemical.
Is dissolving in water a chemical or physical property?
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.
Is dissolves in water physical property or chemical property?
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.
Is heating pasta a chemical or physical change?
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).
Is melting butter a physical change or chemical 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.
Is Fog forming an examples of chemical changes?
The formation of fog is a physical change, not a chemical one.
Which of the following indicates that a chemical change has happened during cooking a The food darkens b Bubbles form in boiling water c Butter melts d Energy is transferred from the stove to a pan?
Examples: change of taste, odor, color, viscosity etc.
Is sauce burning in a stove a physical or chemical change?
no
Is natural gas burning in a stove physical or chemical changeexamples?
It is a chemical change. Natural gas (UK) is a mixture containing principally methane. CH4 + 2O2 -> CO2 + 2H2O
