by the burning of ammomium dichromate it gave a dark green colour
you observe your mom
its a physical change call me at 9529753952
She would likely observe an increase in leaf growth or a change in flower color.
you can observe chemical reactions from its smell, colour, shape, or the change in it's properties
gas
observe
air masses
You would do that to observe the result of changing it.
Report the results to UCC
The best way to know when a physical change is taking place is to observe. There will be a visible change in physical changes.
You can observe acceleration in a vehicle by feeling your body being pushed backwards when the vehicle accelerates, and pushed forwards when it decelerates. Additionally, you can observe the speedometer increasing as the vehicle accelerates, indicating a change in velocity.
Yes. If you observe a chemical property, the substance will be undergoing a chemical change, which by definition produces a new substance.