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What else can I help you with?
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).
All are examples of chemical reactions except?
Breaking a glass. This is a physical change as the glass does not transform into a different substance. Chemical reactions involve the breaking and forming of chemical bonds to produce new substances.
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 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.
Is water boiling on a stove a chemical?
Yes. But before you write that on your homework, be very sure the question that you asked here is exactly the same as the one your teacher asked on your homework; I suspect it may not be.
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?
An apple turning brown is a chemical change because it involves a reaction that changes the chemical composition of the apple. Food burning on the stove is also a chemical change as it involves a combustion reaction that changes the chemical composition of the food.
How does LPG gas burning on gas stove involve chemical and physical changes?
When LPG gas burns on a gas stove, it undergoes a chemical change as it reacts with oxygen to produce heat, light, carbon dioxide, and water vapor. This is a combustion reaction. The physical change involved is the change in state of the gas from a liquid to a gaseous form as it is released from the cylinder and then burns.
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 sauce burning in a stove a physical or chemical change?
The burning of sauce on a stove is a chemical change. This is because the heat from the stove causes the molecules in the sauce to break apart and rearrange into new substances, such as carbon compounds and ash. This chemical reaction is irreversible and results in a change in the chemical composition of the sauce.
What could causes only a physical change in a hamburger patty?
Freezing it should only be a physical (not chemical) change. cutting it in half
Is dissolving in water a chemical or physical property?
Dissolving in water is a physical property because it does not change the chemical composition of the substance. The molecules of the substance are simply surrounded by water molecules and dispersed throughout the solution without undergoing a chemical reaction.
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).
What form of energy does a saucepan boiling on the stove use?
The heat energy from the stove, which in turn comes from the burning of the chemical energy in the gas that is burning, or from the electrical energy, depending on the type of stove.
What state changes when you cook something on the stove?
Cooking is a chemical change; but some physical changes may be involved: de freezing, liquefaction, evaporation.
