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Hydrogen bromide and hydrogen chloride are both simple molecules. They have London forces between molecules. It is essential that you highlight that these interactions (induced dipole-dipole) are BETWEEN ...

The first step is not to translate straight away. First, read any information given to you about the context of the passage. Next,take the passage a sentence at a time. Find the subject usually near the b...

25 x 2 = 50
15% = 0.15
50 x 1.15 = 57.5
or
0.15 x 50 = 7.5
50 + 7.5 = 57.5

1. Give the student an example question.e.g: past paper question from OCR (higher tier) paper 4 2017
   Each week Dan drives two routes, route x and route y.
   One week he drives route x three ti...

These are geographical terms which are commonly mixed up, due to the similar nature of the terms. In brief, the difference is simple - glacial erosion is the erosion process and consequences physically c...