Questão 1
Questão
In scientific terms, a material that is not strong is known as a weak material
Questão 2
Questão
Which of the following is the definition of ductile?
Questão 3
Questão
Metals are good conductors of heat and electricity.
Questão 4
Questão
Metals are always shiny.
Questão 5
Questão
How many nearest neighbours of opposite charge does each chloride ion in sodium chloride have
Questão 6
Questão
The charge on a sulfate ion is +[blank_start]2[blank_end].
Questão 7
Questão
A negative bromine atom is known as a [blank_start]bromide[blank_end] ion.
Questão 8
Questão
The \(OH^{-}\) ion is known as a
Responda
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Hydroxide ion
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Hydroxyl ion
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Hydride ion
Questão 9
Questão
Ionic lattices conduct electricity in their solid form
Questão 10
Questão
Which of the following is an example of a giant covalent substance?
Questão 11
Questão
Diamond is a good conductor of electricity
Questão 12
Questão
All covalent substances have low melting points
Questão 13
Questão
Which of the following is diamond not used for?
Responda
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Jewellery
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Drill bits
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Industrial cutting
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Lubricant
Questão 14
Questão
Diamond has a tetrahedral unit cell.
Questão 15
Questão
Each carbon is bonded to [blank_start]4[blank_end] other carbon atoms in diamond.
Questão 16
Questão
Graphite is made up of layers of [blank_start]hexagonal[blank_end] carbon-carbon bonds
Questão 17
Questão
Ionic substances have [blank_start]high[blank_end] melting points.
Questão 18
Questão
What is this \(C_60\) molecule commonly known as?
Questão 19
Questão
Carbon nanotubes are made out of diamond