Elements Compounds And Mixtures Flashcards

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1
Q

Define element

A

A substance that cannot be broken down into simpler substances by chemical means
Contain only one type of atom

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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

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3
Q

Define mixtures

A

Two or more different substances mingled with each other but not chemically combined
Eg Air

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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
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