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State the qualitative tests to distinguish between halide ions in solution.

To test for chloride ions, add silver nitrate and a white precipitate should form, then add dilute ammonia and it should re-dissolve. For bromide ions, add silver nitrate and a cream precipitate should fo...

RB
Answered by Ruggero B. Chemistry tutor
6838 Views

How do you scan a line of dactylic hexameter?

Take a line of dactylic hexameter in Latin, e.g.Thybris ea fluvium, quam longa est, nocte tumentem (Virg. Aen. 8.86)Begin by marking any elision in the line (where a word ending in a vow...

JH
Answered by Jonathan H. Latin tutor
3717 Views

Differentiate y = ln (3x + 2)

The equation for the derivative of the natural log is dy/dx = f'(x)/f(x) where f(x) = the contents of the natural log, in this case 3x+2. So, to get dy/dx we first need f'(x), the derivative of f(x). This...

WS
Answered by Will S. Maths tutor
21189 Views

Can you explain Sartre's vision of freedom?

Sartre's idea is that we are "condemned to be free", which can sound bizarre since this sentence is an oxymoron. As human beings, we are entirely free to do whatever we want. This can lead to a ...

SK
2471 Views

A patient is infected by a pathogen. Explain the process of the imitation of the immune response (5 marks) The paitent was prescribed antibiotics yet their symptoms did not improve. What can you infer from this? (1 mark)?

5 of the following...
Pathogen has antigens on its surface that are recognised as foreign by the immune system
T helper cells stimulate cytotoxic T cells, B cells and phagocytes (or lysosomes)

HF
Answered by Harriett F. Biology tutor
2537 Views

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