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The reddish-brown spots on a bread knife are typically a result of rust, which is a chemical change. Rust forms when iron in the knife reacts with oxygen and moisture in the air, leading to the formation of iron oxide. This process alters the chemical composition of the metal, distinguishing it from a physical change, which would not involve such a transformation.
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Is slincing bread physical or chemical change?
Slicing bread is a physical change because it does not change the chemical composition of the bread.
Is bread a physical or chemical change?
chemical
Is toasting a bread a chemical or physical change?
chemical change
When making bread is it at physical or chemical change?
chemical
Is bread toasted a physical or chemical change?
Physical cause it is still bread
You forgot to dry the bread knife when you washed it and reddish brown spots appeared on it is it physical or chemical?
Both, the reddish spots are rust and a chemical change. You will also find (after you have rubbed off the rust) that the surface of the knife is pitted. These pits are a physical changed caused by the chemical reaction.
Is slincing bread physical or chemical change?
Slicing bread is a physical change because it does not change the chemical composition of the bread.
Is baking bread physical change?
bread is a chemical change, not a physical change
Is slicing a bread a chemical or a physical?
Slicing bread is a physical change, because each slice of bread has the same chemical composition as it had before it was sliced.
Is bread breaking a physical or chemical change?
Physical
Is bread a physical or chemical change?
chemical
Is slicing bread chemical change?
No, slicing bread is a physical change. The act of cutting the bread into smaller pieces does not alter its chemical composition.
When bread is baked is that a physical change or a chemical change?
chemical
Is a bread toasted a physical or chemical change?
It is a chemical change.
Is toasting a bread a chemical or physical change?
chemical change
Is toasting bread chemical or a physical change?
chemical change
Is a toasting bread a chemical or a physical change?
It is chemical change
