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How do I approach the writing exam (Paper 2) for IB German Level 2?

The best way to prepare for Paper 2 in German is to be aware of what will be asked from you during the exam. During the paper, which is 1,5 hours long, you will have to write one creative assessment (250 ...

Answered by Anne R. • German tutor

11355 Views

Use the following information: [[[[2H2(g) + O2(g) → 2H2O(l) ∆H = −572 kJ mol−1]]]] [[[[2H2(g) + O2(g) → 2H2O(g) ∆H = −484 kJ mol−1]]]] to calculate the enthalpy change for the process: H2O(g) → H2O(l)

Well the method I use for calculations in thermochemistry is a little different from the textbooks but is far easier to understand.

I would approach this question by drawing out the chemical equat...

Answered by Louis B. • Chemistry tutor

7980 Views

Do you have any exam tips for Biology Paper 2?

So one thing I observed in my Biology class was that students would memorise every single piece of inforrmation about each biological process that was written on their 'comprehensive flashcards'. One thin...

Answered by Louis B. • Biology tutor

3843 Views

Can you explain the oxygen dissociation curve? and the Bohr Shift?

As each O2 molecule binds to the haemoglobin, it alters the shape of the protein --> making subsequent binding more favourable. Therefore the affininity for oxygen will be greater in places with a high...

Answered by Louis B. • Biology tutor

2169 Views

I do not understand how demand and supply work, can you please explain it to me?

Economics is the social science that studies the production, distribution and the consumption of goods and services. To explain this concept, we use the model of demand and supply, which is shown in a gra...

Answered by Anya M. • Economics tutor

2086 Views