Chemistry

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What is the atomic number?
Number of protons in atom.
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What is the mass number?
Protons+Neutrons in an atom.
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What is the group number?
Number of electrons in the outer shell.
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How are compounds formed?
2 or more elements joining together
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How are ionic bonds formed?
Positive and Negative attracting.
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What is an ion?
An atom with a charge due to an atom losing/gaining an electron.
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Describe the structure of ionic compounds.
Full outer shell.
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Which substances are always soluble in water?
Sugar, nitrates, sodium or potassium.
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Which substances are soluble with some exceptions?
Salt and common sulphates.
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Which substances are always insoluble?
Carbonates and hydroxides.
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Which insoluble salt is given as a 'barium meal'?
Barium sulphate
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Why is barium sulphate useful?
Used in X Rays
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What colour does the flame turn when SODIUM is present?
Yellow/Orange
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What colour does the flame turn when POTASSIUM is present?
Lilac
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What colour does the flame turn when CALCIUM is present?
Brick red
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What colour does the flame turn when COPPER is present?
Blue/Green
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Which gas is released when a carbonate is added to an acid?
Carbon dioxide
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What is spectroscopy?
A flame test that looks for the presence of an element in a compound.
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What is a covalent bond?
Non metal atoms sharing electrons
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What is graphite used for?
Pencil
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What is diamond used for?
Jewelry
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How are two immiscble liquids separated?
Seperating funnel
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How are two miscibleliquids separated?
Fractional Distillation
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Other cards in this set

Card 2

Front

What is the mass number?

Back

Protons+Neutrons in an atom.

Card 3

Front

What is the group number?

Back

Preview of the front of card 3

Card 4

Front

How are compounds formed?

Back

Preview of the front of card 4

Card 5

Front

How are ionic bonds formed?

Back

Preview of the front of card 5
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