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Chemical change-- a new substance is formed.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agochemical
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Is adding hot water to pot noodles chemical or physical?
Yes, because it is reversible
When water is boiled in a pot it bubbles Is this the result of a chemical reaction Explain why or why not?
It is a physical change because it is evaporation. Physical changes can be undone. If it was a chemical reaction it would be permanent like burning wood.
Do the bubbles in a pot of boiling water for noodles indicate chemical change?
No. That is a physical change of the liquid water turning to gas (steam)
Describe the physical and chemical changes that occur when a pot of water is boiled over a campfire?
The chemical changes are in the campfire- the wood combines with oxygen from the air, releases heat and carbon dioxide. The water does not have a chemical change, but does have a physical change- it changes from a liquid (water) to a gas (steam).
Are pot noodles bad for you?
pot noodles are bad because of all the added preservatives and fat, sodium and sugar levels compared. the energy is high so you would be hyper LOL
Clay pot fired in a kiln physical or chemical?
A combination of both. The clay minerals partially melt (physical), and react with each other and the oxygen in the kiln (chemical)
Is adding hot water to pot noodles a physical change?
Adding hot water to pot noodle is a physical change because the chemical nature of water remain unchanged.
Is adding hot water to pot noodles chemical or physical?
Yes, because it is reversible
When water is boiled in a pot it bubbles Is this the result of a chemical reaction Explain why or why not?
It is a physical change because it is evaporation. Physical changes can be undone. If it was a chemical reaction it would be permanent like burning wood.
Do the bubbles in a pot of boiling water for noodles indicate chemical change?
No. That is a physical change of the liquid water turning to gas (steam)
Describe the physical and chemical changes that occur when a pot of water is boiled over a campfire?
The chemical changes are in the campfire- the wood combines with oxygen from the air, releases heat and carbon dioxide. The water does not have a chemical change, but does have a physical change- it changes from a liquid (water) to a gas (steam).
Why is it physical change if the steel wool turned the black pot shiny silver?
Physical change: the steel wool only changes the black pot's shape and in doing so reveals another color in the pot or the color of the substance that the pot is made from; it would still be the same thing but there would be all the parts of the pot, just it would be in different pieces.
If an ice cube is placed in a pot that is heated what will happen after it has melted is it a chemical or physical change?
When ice melts and becomes a liquid it is a physical change. When the liquid boils and becomes gaseous it is a physical change. It is a chemical change when the molecular structure has been changed in some way, here it has not.
What plant burns withe the least flame and most smoke?
pot!
What is an example of matter that has gone through a physical change only?
A good example of a simple Physical Change occurs in a tea pot. The hot, liquid water boils and goes off as steam. Steam is still water (no chemical change,) but is now a gas.
Does pot raise your blood sugar?
yes it does
Is boil chemical?
It is NOT a chemical reaction. Boiling is a physical reaction. When heat is applied to water in a pot, the hydrogen and oxygen molecules begin to get excited; they bounce around everywhere. The heat traps the oxygen molecules in bubbles, which go to the sides of the pot (following the path of least resistance). These bubbles then come to the surface, releasing oxygen and steam. Boiling is simply a phase change from a liquid to a gas.
