Separation Techniques
What does soluble mean
Can dissolve
What are the vertical columns called
groups
What is the periodic table
A list of elements
Name the three states of matter
solid, liquid and gas
What is the mass number of magnesium?
24
What can filter paper be used to separate
Sand and water (or any insoluble solid)
What is the atomic number of sodium
11
What does compress mean
squash
In what state are the particles arranged in neat rows
Solid
Name two pieces of equipment needed to separate salt and water
Bunsen burner, evaporation basin, tripod, gauze, heat proof mat, stirring rod
How is water and salt separated
Evaporation
What does the mass number mean?
The number of protons and neutrons
What is an atom
The smallest particle
In what state do the particles have the most energy
Gas
How many neutrons in bromine
45
What does chromatography separate
inks
How do you find the number of neutrons
Mass number - atomic number
What is a compound
Two or more elements chemically bonded together
What can't solids be compressed (squashed)?
Because there is no space between the particles
What is a mixture
Two or more substances mixed together
What are the 3 stages in distillation
heat, condense, collect
How many electrons, protons and neutrons in oxygen?
8 protons, 8 electrons, 8 neutrons
What does condensation mean
when a gas turns into a liquid
How are the particles in a liquid arranged
Randomly, close together
How many elements are there on the periodic table?
118