Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
1st August 2022
- 1Bonding, Structure and Properties of Matter
A student says that metals conduct electricity because they contain free-moving ions. Explain why this statement is incorrect, and give the correct explanation.
- 2Chemical Bonding: Ionic, Covalent and Metallic
What type of bonding is present in a compound formed between a metal and a non-metal?
- 3Structures, Properties and Nanoparticles
Why can an ionic solid not conduct electricity?
- 4Quantitative Chemistry
Calculate the Mr of Ca(OH)2. (Ca = 40, O = 16, H = 1)
- 5Moles, Formulae and Equations
In the equation 2H2 + O2 gives 2H2O, how many moles of water are formed from 3 mol of hydrogen?
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