Definitions Flashcards
Chemical Change
A change that is irreversible change and it makes a new product.
Physical Change
This change is reversible change and its particles don’t change.
Element Definition
A particle that is made up of one pure type of atom.
Compound Definition
a substance that results from a combination of two or more different element in such a way that the atom s of the different elements are held together by chemical bonds that can be broken.
Mixture Definition
These are made up of more than one different element and are physically combined.
Molecule Definition
A group of atoms that are bonded together.
Acid + Metal
Salt+ hydrogen
Displacement Definition
When a more reactive metal steals gas from less reactive metal
Acid + Carbonate
Water + Salt + Carbon Dioxide
Metal + Water
Metal hydroxide + Hydrogen
Metal + Oxygen
Metal oxide
Acid + Alkali
Salt + Water
