no
Physically or chemically.
It means that although it changes, no new substances are formed. Examples of such changes are melting and other state changes, and dissolving.
If you change something physically it may look, act or feel different, but it is still the same thing.
If computer hardware in waranty we will replaced that thing or should be changed to another
Yes, it can.
No matter, the age, a person should on a well-balanced diet will be healthy both mentally and physically.
If you change something physically it may look, act or feel different, but it is still the same thing.
A compound.
Yes - the state of matter.
Chemically changed and can be physically separated into different species.
Yes and also if you have changed your diet drastically. It´s a warning sign that you should take it a bit easy.
in gases, change in volume is a physical change. however you can manipulate it physically or chemically (to a loose definition). Look at the ideal gas equation. PV=nRT Volume is dependent on pressure and temperature (physically changed) and on the number of moles (amount of gas) (chemical....ish)