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GCSE
Gcse Chemistry
Bonding - Covalent
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Q.1
Some covalent substances have huge numbers of atoms bonded together by a network of covalent bonds. This is called...
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a giant covalent structure
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a giant structure
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a covalent giant
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a covalent network
Q.2
How many covalent bonds can nitrogen form?
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2
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3
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1
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4
Q.3
How many electrons are involved in a covalent bond?
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4
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2
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As many as are free
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1
Q.4
Which of these has molecules with two atoms joined by a covalent bond?
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Bromine
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Copper
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Neon
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Methane
Q.5
Pick the correct combination of properties of most covalent compounds.
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Non-conductor Low melting points
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Conductor Low melting points
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Conductor High melting points
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Non-conductor High boiling points
Q.6
A water molecule is covalently bonded. How many covalent bonds does it have?
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1
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Q.7
What happens to electrons in covalent bonding?
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They are shared by the atoms
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They pass from one atom to another
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They are removed from the atoms' shell
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They are added to both atoms' shells
Q.8
Methane is covalently bonded. How many bonds are involved?
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1
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Q.9
Covalent bonding occurs when what type of atoms join?
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Metal and metal
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Metal and non-metal
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Non-metal and non-metal
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Metal and a noble gas
Q.10
Where do the electrons for a covalent bond come from?
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The nucleus
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The outermost electron shell
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The innermost electron shell
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The electron shell with the most electrons
0 h : 0 m : 1 s
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