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Explain why fluorine and chlorine are in the same group of the periodic table.

These elements are in the same group in the periodic table due to their electron configurations: fluorine: 2, 7 chlorine: 2, 8, 7 They both have 7 electrons in their outer shell, so therefore are both in gro...
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Answered by Mia V. • Chemistry tutor
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Expand and simplify (3x+2) (x-5)

We expand this term by term. To make sure we expand every term, I use the beak method. To do this, draw 2 curves over the equation from the 3x to the x , and then a second curve from the x to the + 2 . Then ...
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Answered by Dominic S. • Maths tutor
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Are diffusion and osmosis the same thing?

Diffusion is defined as the movement of a substance from a high concentration to a low concentration, meaning they move from where there are lots of them to where there are fewer. Diffusion of these molecule...
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Answered by Eleanor B. • Biology tutor
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What is Le Chatelier's Principle?

Le Chatelier's Principle states that for a reaction which is reversible, where there is a change made to the reaction conditions the equilibrium position will shift to oppose the change. In answering a quest...
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Answered by Angus T. • Chemistry tutor
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Why does Aluminium react with Iron Oxide?

Aluminium is higher on the reactivity series than iron. This means that it is more reactive than iron. As a result, it displaces iron from the compound iron oxide in a displacement reaction, creating alumini...
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Answered by Angus T. • Chemistry tutor
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