Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
26th December 2022
- 1Life Cycle Assessment, Recycling and Corrosion
Explain, using the reactivity series, why attaching blocks of zinc to the hull of a steel ship helps prevent the steel from rusting.
- 2Atomic Structure and the History of the Atom
Why is an atom electrically neutral?
- 3The Periodic Table: Groups and Trends
Why are the noble gases unreactive?
- 4Bonding, Structure and Properties of Matter
State one reason why simple covalent substances such as chlorine have low melting points.
- 5Chemical Bonding: Ionic, Covalent and Metallic
Why can an ionic compound conduct electricity when molten or dissolved but not when solid?
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