Top answers

Chemistry
A Level

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
6840 Views

Analysing IR spectrum.

IR looks at how infrared light interacts with a molecule, measuring the vibration of atoms. Bonds are continuously vibrating and moving around, much like two balls connected by a spring. This spring syste...

LW
Answered by Lucy W. Chemistry tutor
2322 Views

What is an optical isomer?

An optical isomer is when a molecule has a 'non-superimposable mirror image'. This means that if you draw out its reflection, it is not the same as the original. A good example in daily life would be feet...

PS
2381 Views

Explain the position and numbering system of elements on the periodic table.

For each element on the periodic table there are two key numbers associated with it, the atomic number and the atomic mass (top and bottom respectively). The atomic number is simply a count of how many pr...

GD
Answered by Glen D. Chemistry tutor
15708 Views

Why can both major and minor products be formed during an eimination reaction?

The double bond can be attacked by the OH nucleophile producing two possible carbocation intermediates. The more stable carbocation with more surrounding electron releasing methyl groups will be more stab...

HA
Answered by Haider A. Chemistry tutor
3140 Views

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