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Card 16
Front
16.List three typical properties of metals that are due to their metallic bonding.
Back
Card 17
Front
17.Out of the four main types of structure (ionic,simple covalent, giant covalent and metallic), which one is most likely to have a low melting point?
Back
Card 18
Front
18.In chemistry, what is meant by the term 'a pure substance'?
Back
Card 19
Front
19.Does adding an impurity to a substance raise or lower its boiling point?
Back
Card 20
Front
20.List the equipment that you would need to do a fractional distillation in the lab.
Back
Card 21
Front
21.What purification technique should you use to obtain a pure sample of a soluble solid from a solution?
Back
Card 22
Front
22.In chromatography, what do the terms 'mobile phase' and 'stationary phase' mean?
Back
Card 23
Front
23.Describe the method for separating a mixture by thin-layer chromatography.
Back
Card 24
Front
24.How do you calculate the Rf value of a substance from a chromatogram?
Back
Card 25
Front
25.What is meant by the 'relative atomic mass' of an element?
Back
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