It is only a physical change.
it is a physical change :-)
physical change
Physical Change
It is a physical change.
i have no idea i asked you!!
No, dissolving is a physical change
it is a chemical change Sodium carbonate + Copper sulfate react to make Sodium sulfate + Copper carbonate
nether
No, crushing sodium carbonate does not produce a new chemical substance. Thus, crushing is an example of a physical change.
If a solid is crushed to a powder, it is a 'Physical' change. This is because the chemical compounds in the solid isn't changing, just the texture and shape of it.
Well you can't put it back together after it's been crushed, so it's a chemical change!
The act of burying garbage itself is not really a physical change. If the garbage was crushed, that would be a physical change. When the garbage decomposes in the ground, that is a chemical change.