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How do each of ionic, covalent and metallic bonding compare?

To begin, it is important to note that each of these three types of bonding is very strong. Both ionic and metallic bonding rely on electrostatic forces of attraction between oppositely charged particles. In...
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Answered by Alia A. • Chemistry tutor
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How do control rods work in a nuclear fission reactor?

In Nuclear Fission, neutrons collide with radioactive atoms (eg Uranium-235) in order to split the atom into two smaller atoms and releasing energy. The more neutrons there are the faster the reaction so to ...
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Answered by Jordan H. • Physics tutor
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Why does a single slit diffraction pattern occur?

When light passes through a narrow gap it will diffract (spread out). This means the light reaching the screen could have come from anywhere within the slit. If one wavefront passes through the left of the s...
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Answered by Jordan H. • Physics tutor
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What is an easy way to remember the effects of the exchange rate on imports and exports?

These two simple acronyms will help you remember the effects of changes in the exchange rate on imports and exports: Strong Pound Imports Cheap Exports Dear The acronym "SPICED" is a helpful way to...
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Answered by Jake C. • Economics tutor
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What are the key differences between plant and animal cells?

There are several important differences between plant and animal cells that will be key to remember in the exam. Namely: - Plant cells have a rigid cell wall whereas animal cells have a cell membrane - Plant...
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Answered by Jake C. • Biology tutor
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