Elements Compounds And Mixtures Flashcards
1
Q
Define element
A
A substance that cannot be broken down into simpler substances by chemical means
Contain only one type of atom
2
Q
Define compound
A
A substance made op of two or more different elements chemically combined. Contains two or more different types of atoms
Eg water
3
Q
Define mixtures
A
Two or more different substances mingled with each other but not chemically combined
Eg Air
4
Q
Mixture of iron and sulfur
Compound iron sulfide
A
Using a mortar and pestle ground together iron filings and sulfur.
- use magnet to separate iron from sulfur
- mix again, place in test tube and heat up using a Bunsen burner and retort stand
- it will glow, then turn solid dark gray -can’t be separated, it’s a compound , different properties than the elements from which it’s made