Science Seperating Techiques Flashcards
Name me a pure element.
Oxygen
What is a compound?
A compound is a substance from two or more elements chemically joined together.
Name me a pure compound.
Carbon dioxide
Mixture of elements.
Oxygen and helium
Name me a mixture of compounds
Alcohol and water
Name a mixture of elements and compounds
Air
What dose oxygen look like
3 groups of 2 red dots
What dose carbon dioxide look like
2 groups of 2 red and 1 black dots
What dose oxygen and helium look like
2 groups of 2 red dots (oxygen) and 2 groups of 1 yellow dot ( helium)
What dose alcohol and water look like
2 groups of 1 red dot, 2 black dots and 5 white dots and 1 group of 1 red dot and 2 white dots (all white dots are small)
What dose air look like.
2 groups of 2 blue dots, 1 group of 2 red dots and 1 black dot, 1 group of 1 red dot and two small white dots and 1 group of 2 red dots.
What is decanting?
It is pouring a liquid down a stick to leave the solid behind.
When is filtering used?
When separating a solid from a liquid.
When can evaporation be used?
To separate a solid from a solution.
What dose chromatography do?
It separates out ink sour dyes.
