chemistry paper 1

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what does an element contain?
one type of atom
1 of 13
what do compounds contain?
atoms of two or more elements that are chemical combined in fixed proportians
2 of 13
what does a mixture consist of?
two or more elements or compounds that are not chemically joined
3 of 13
what is filtration used for?
to separate soluble solids from insoluble solids
4 of 13
what is crystilation used for?
to obtain a soluble solid from a solution
5 of 13
what is simple distillation used for?
to obtain a solvent from a solution
6 of 13
what is fractional distillation used for?
to separate mixtures in which the components have different boiling points
7 of 13
what is chromatography used for?
to separate the different soluble, colored components of a mixture
8 of 13
what is an isotope?
elements that have the same number of protons but a different number of neutrons
9 of 13
what is group 0 of the periodic table known as?
the noble gasses
10 of 13
what is group 1 of the periodic table known as?
the alkali metals
11 of 13
what is group 7 of the periodic table known as?
the halogens
12 of 13
what are the elements in the center of the periodic table known as?
the transition metals
13 of 13

Other cards in this set

Card 2

Front

what do compounds contain?

Back

atoms of two or more elements that are chemical combined in fixed proportians

Card 3

Front

what does a mixture consist of?

Back

Preview of the front of card 3

Card 4

Front

what is filtration used for?

Back

Preview of the front of card 4

Card 5

Front

what is crystilation used for?

Back

Preview of the front of card 5
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