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Basically, TU and VOUS both mean "YOU". - "TU" when speaking or interacting with someone you know well, such as your friends, parents, siblings. --> Only when speak...
To start, I always look at the structure of the sentance: exclamatives, commas, colons, ellipsis- all these things can really help you analyse a sentance. For example exclamative indicates someone is shou...
Diamond is an extremely strong and rigid substance because of its molecular structure, which is giant covalent structure. This means that every carbon is covalently bonded to 4 other carbon molecules to f...
An unsaturated hydrocarbon is a molecule containing only hydrogen and carbon with a carbon carbon double bond in the molecule.
Reflection: a wave hits a surface, and bounces back into the medium it was originaly in
Refraction: a wave enters a medium with a different refractive index to the original medium it was travelling...
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