Chemical change-- a new substance is formed.
Adding hot water to pot noodles is a physical change. The hot water causes the noodles to absorb the water and soften, changing their physical state without altering their chemical composition.
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).
This depends. Are the pot noodles dry at room temperature? Then not yet .Are the pot noodles in boiling water? Is the water you are adding from the cold water tap? Then, Yes, as boiling will stop until the new water is at boiling temperature.
No, the bubbles in boiling water for noodles do not indicate a chemical change. The bubbles are formed due to the physical process of water reaching its boiling point and turning into steam bubbles. This is a physical change, as only the state of the water molecules is changing, not their chemical composition.
The bubbling of water when boiled is not the result of a chemical reaction. It is due to the conversion of liquid water to water vapor, which forms bubbles as it rises to the surface. This process is physical in nature, involving the phase change from liquid to gas.
Adding hot water to pot noodle is a physical change because the chemical nature of water remain unchanged.
Adding hot water to pot noodles is a physical change. The hot water causes the noodles to absorb the water and soften, changing their physical state without altering their chemical composition.
The firing of a clay pot in a kiln involves both physical and chemical processes. The physical process is the application of heat to the clay, causing it to harden and form a solid structure. The chemical process involves the transformation of the clay minerals into a more stable crystalline structure through processes like dehydration and recrystallization.
Melting butter in a hot pot is a physical change. During this process, the butter transitions from solid to liquid form without altering its chemical composition. The change is reversible, as the melted butter can solidify again upon cooling.
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.
When a teaspoon of salt is dissolved in a pot of water, it undergoes a physical change. The salt dissociates into its constituent ions, sodium and chloride, but its chemical structure remains unchanged. This process is reversible, as the salt can be recovered by evaporating the water. Thus, the dissolution of salt in water is a physical change rather than a chemical one.
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.
One standard cup of granulated sugar weighs approximately 200 grams. Since a "pot" can vary in size, the weight of sugar in a pot will depend on its volume. If you have a specific size of the pot in mind, you can calculate the grams by converting the volume of the pot to cups and then multiplying by 200 grams per cup.
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).
yes it does
This depends. Are the pot noodles dry at room temperature? Then not yet .Are the pot noodles in boiling water? Is the water you are adding from the cold water tap? Then, Yes, as boiling will stop until the new water is at boiling temperature.
No, the bubbles in boiling water for noodles do not indicate a chemical change. The bubbles are formed due to the physical process of water reaching its boiling point and turning into steam bubbles. This is a physical change, as only the state of the water molecules is changing, not their chemical composition.