Your friend decides to toast a piece of bread, but leaves it in the toaster too long. The bread is black and the kitchen if full of smoke. Is this a physical or a chemical change?
It is a physical change because the bread has formed a new substance
It is a chemical change because the burning of the bread has formed a new substance and released a gas.
It is a physical change because it just changed the color
It is a chemical change because the bread is still bread just toasted
What type of change happens when a match is lit?
Physical change
Chemical change
Blue Color
Density
Flammability
Solubility
Supports Combustion
Sour Taste
Melting Point
Reacts with water
Hardness
Boiling point
Reacts with air
Chemical Property
Physical Property
Is NaCl (table salt) dissolving in water a physical or a chemical change?
Physical change because a new substance was created
Chemical change because a new substance was created
Physical change because a new substance was not created