Chemistry

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What is the atomic number?
Number of protons in atom.
1 of 23
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.
3 of 23
How are compounds formed?
2 or more elements joining together
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How are ionic bonds formed?
Positive and Negative attracting.
5 of 23
What is an ion?
An atom with a charge due to an atom losing/gaining an electron.
6 of 23
Describe the structure of ionic compounds.
Full outer shell.
7 of 23
Which substances are always soluble in water?
Sugar, nitrates, sodium or potassium.
8 of 23
Which substances are soluble with some exceptions?
Salt and common sulphates.
9 of 23
Which substances are always insoluble?
Carbonates and hydroxides.
10 of 23
Which insoluble salt is given as a 'barium meal'?
Barium sulphate
11 of 23
Why is barium sulphate useful?
Used in X Rays
12 of 23
What colour does the flame turn when SODIUM is present?
Yellow/Orange
13 of 23
What colour does the flame turn when POTASSIUM is present?
Lilac
14 of 23
What colour does the flame turn when CALCIUM is present?
Brick red
15 of 23
What colour does the flame turn when COPPER is present?
Blue/Green
16 of 23
Which gas is released when a carbonate is added to an acid?
Carbon dioxide
17 of 23
What is spectroscopy?
A flame test that looks for the presence of an element in a compound.
18 of 23
What is a covalent bond?
Non metal atoms sharing electrons
19 of 23
What is graphite used for?
Pencil
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What is diamond used for?
Jewelry
21 of 23
How are two immiscble liquids separated?
Seperating funnel
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How are two miscibleliquids separated?
Fractional Distillation
23 of 23

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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