If you created something new. If you combined 2 chemicals and there was a line of lets say yellow in the middle, the yellow line would be the chemical change because you have created something new.
an example would be oxidation of the cheese
No, a chemical change. Taste and smell are indicators of chemical composition, so a change in those would indicate a chemical change.
no, breaking wood is a physical change.If the wood was burned, that would be chemical change
an example of a chemical change is burning. there are, of course, many others.
No, a metal bar glowing red hot in a fire would be an example of a physical change, not a chemical change.
an example would be oxidation of the cheese
No, a chemical change. Taste and smell are indicators of chemical composition, so a change in those would indicate a chemical change.
No, That would be a physical change....A chemical change would be for like example: Water Evaporting, Water Boiling, Water Freezing...etc
A physical change. A chemical change would be, for example, burning clothes, or dissolving clothes.
no, breaking wood is a physical change.If the wood was burned, that would be chemical change
For example adding a base.
I suppose that would be a summary of a change which is not chemical. Perhaps it would be something like ice --> water
No because in an exothermic change energy is released not taken in. Melting would be an example of exothermic change.
an example of a chemical change is burning. there are, of course, many others.
No, it would be a physical change. During a chemical change, substance(s) are changed into different substances. An example of a chemical change would be the rusting of iron but a physical change would be freezing water; or in this case, evaporation.
No, a metal bar glowing red hot in a fire would be an example of a physical change, not a chemical change.
physical change. You know that it is a physical change because it can be reversed. An example of a chemical change would be cooking an egg. Because you cannot reverse the process.