Aluminum bending is a physical change. This is because the aluminum is still the same aluminum as it was before just in a different shape.
Yes, white phosphorus igniting is a physical change because it involves a change in the physical state of the substance (from solid to gas) without altering its chemical composition.
Mixing flour and milk creates a physical change because no new substances are formed. The flour and milk retain their individual chemical properties, and the mixture can be easily separated by physical means such as straining.
The process of juice freezing and forming popsicles is a physical change. This is because the change in state from liquid to solid is a physical change that can be easily reversed by allowing the popsicle to thaw back into liquid form.
Rusting iron is a chemical change because it involves a chemical reaction between iron, oxygen, and water to form iron oxide (rust). This process cannot be easily reversed by physical means.
Adding a base to an acid or vice versa in changing the chemical properties of that solution. In both cases you are neuralizing the solution. There might be a physical change as well, but it would depend on what chemicals where mixing. But this reaction will definitely have a chemical change.
It depends. Physical can be easily reversed. Chemical is hard, if not impossible to reverse.
If you burn something it is a chemical change, however if you melt of boil it, it is a physical change.
chemical change is easily reversible whilst physical is not reversible
Yes. Chemical changes are irreversible, but physical changes can easily be changed back
When water boils, it is a physical change.
Yes, white phosphorus igniting is a physical change because it involves a change in the physical state of the substance (from solid to gas) without altering its chemical composition.
physical. because you can easily change it back to water form and/or a gas.
it is chemical because it can not be reversed
A physical reaction is were the current substance can be changed in state and then changed back easily to it's previous state, a chemical reaction is the opposite, it is difficult to change it back to its previous state.
Mixing flour and milk creates a physical change because no new substances are formed. The flour and milk retain their individual chemical properties, and the mixture can be easily separated by physical means such as straining.
physical, because it can be easily reversed
The process of juice freezing and forming popsicles is a physical change. This is because the change in state from liquid to solid is a physical change that can be easily reversed by allowing the popsicle to thaw back into liquid form.