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