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Explain the reactivity of group 1 metals

The reactivity of group 1 metals increases as you go down the group. This is due the number of electron shells increasing, leading to the distance between the outermost electron and the nucleus. The incre...

JC
Answered by Jawad C. Chemistry tutor
2210 Views

What is a Production Possibility Frontier?

A PPF is a graph that can be used to explain opportunity cost, and trade off. It is made up of a concave line with, for example, apples on the vertical axis and bananas on the horizontal ...

MC
Answered by Maisie C. Economics tutor
2315 Views

When do I use the present perfect, simple past and past perfect?

First of all, I'll give you an example of the same verb in those three different tenses, all in the first person singular. We'll use the verb "to read", or "lesen" in German.In present...

AJ
Answered by Annabel J. German tutor
1646 Views

Vous décrivez votre vie d’adolescent(e) pour votre blog

Salut tout le monde !
Voici mon blog, et aujourd'hui je vous parlerai de ma vie.
Je suis étudiante, mais dans mon temps libre je joue du piano. Je le trouve gratifiant puisque cela me permet d...

FB
Answered by Francesca B. French tutor
5043 Views

How can I include critical material in my examination essays?

Examiners want to see you properly engaging with any secondary material you use - it's important not to just drop it in and ignore it. Read a couple of secondary articles on your set texts and make sure t...

LH
3683 Views

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