Mixtures

Question 1

What is a mixture?

Answer 1

A mixture is a combination of 2+ substances that have not chemically reacted with one another.

Question 2

How can mixtures be separated?

Answer 2

By physical means.

Question 3

What is sieving?

Answer 3

When particle sizes differ and one size is smaller than the holes of the sieve.

Question 4

What is magnetic?

Answer 4

Items that can be separated from non-magnetic items. Objects made from iron, nickel/cobalt.

Question 5

Separating funnel

Answer 5

The mixture is shaken and then left to separate. The more dense liquid settles at the bottom and can be tapped off.

Question 6

Filtration

Answer 6

A dissolved substance is poured through filter paper and collected in beaker. Dissolved substance is now the filtrate and can be evaporated, leaving salt crystals behind.

Question 7

Fractional distillation

Answer 7

Gas enters the Liebig condenser, where it cools and condenses again. The condensate runs into a beaker.