How can you tell the difference between Physical change and chemical change?

Answer 1

A there are physical changes but, if you know the 4 chemical changes, anything else is a physical change.

1. Oxidation
2. Burning
3. Heat change
4. Bubbling (not boiling)

Answer 2

you can tell if it is a chemical change when a brand new substance can be formed. The properties in a chemical change are flammibility or reactivity. A physical change no new substance is formed and is usually reversible but not in all cases.

Answer 3

Signs of a chemical change include: color change (two clear liquids producing a yellow liquid), phase change (two liquids producing a solid precipitate or a gas), temperature change (two liquids combining and cooling the solution down or heating it up).

Answer 4

bubbling, change in color, blow up, smell, change in shape

Answer 5

physical is an original substance change by physical techiques. chemical is the same thing but chang by chemical techiques.

Answer 6

One way is perform a boiling point test or a melting point test.

Answer 7

you can tell the difference by a physical property is like an appearance and a chemical property is a change chemically like the density and if its soluble or not

Answer 8

A physical change does not change the chemical composition of the substance undergoing the change, however, a chemical change does cause a change in chemical composition.

Answer 9

A physical change doesn't involve a modification of the chemical formula of a compound.