Daily Practice · GCSE Science

Daily Practice - GCSE Science

4th January 1999

5 questions · GCSE · 584 questions in this band

1
Bonding, Structure and Properties of Matter
State one reason why simple covalent substances such as chlorine have low melting points.
2
Chemical Bonding: Ionic, Covalent and Metallic
What type of bonding is present in a compound formed between a metal and a non-metal?
3
Structures, Properties and Nanoparticles
Why can an ionic solid not conduct electricity?
4
Quantitative Chemistry
Calculate the Mr of Ca(OH)2. (Ca = 40, O = 16, H = 1)
5
Moles, 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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