Physical Properties Flashcards
0
Q
About physical change:
A
Is a change which does not affect the chemical properties of the substance.
Ex: change of state, solubility
1
Q
What is a physical properties?
A
A characteristic of a substance
Ex: state of matter, hardness, melting point, odour, colour.
2
Q
Chemical changes occurs:
A
When a substance reacts and forms one or more new substances.
Change is indicated by:
Change in colour
The production of a gas
The formation of a precipitate
The production or absorption of thermal energy
The production of light
3
Q
How chemical reactions are different from physical reactions?
A
In physical changes, atoms remain bonded in the same way before and after.
