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Is burning toast is a physical or a chemical change?
chemical
Is burning toast a chemical change or a physical change how do you know?
It is kind of both....The chemical: The toast loses its water molecules and so loses most of its H2O.The Physical: The toast becomes hard and crunchy from soft and airy.Added:The toast burning is a total physical change, not chemical. Water loss from the toast is not a chemical change as species have not changed partners ( atoms have not rearranged into new species ) and H2O remains the molecule H2O, water.
Is a burning toast a physical or chemical change How do you know?
It is kind of both....The chemical: The toast loses its water molecules and so loses most of its H2O.The Physical: The toast becomes hard and crunchy from soft and airy.Added:The toast burning is a total physical change, not chemical. Water loss from the toast is not a chemical change as species have not changed partners ( atoms have not rearranged into new species ) and H2O remains the molecule H2O, water.
Burning toast physical or chemical change?
Burning toast is a CHEMICAL change. A physical change is reversable-for example, you can freeze water into a cube and then defrost and reconvert to water. Burning is always a chemical change. In order for something to burn, some of the original substance must be lost and therefore cannot be turned back into its original form
Is butter on toast a chemical change or a physical change?
it is a physical change
Is burning toast a physical or chemical state?
It is a chemical process.
Is buttering toast a physical or chemical change?
Physical change.
Is a toast a chemical or physical change?
Chemical
Is toast reversible or reversible?
Burning is an irreversible change.
Is unburned toast a chemical or physical change?
physical
When the bread is cooked it turns to toast this change is not reversible describe a different non reversible change?
That is a chemical change. Physical changes can be undone. Burning a bit of paper is another non-reversible change.
Is burning a fire a physical or chemical change?
Burning is a chemical change.
