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Explain why Sc3+(aq) is colourless, while Ni2+(aq) is green.

Colour arises due to partially filled d-orbitals. D-orbitals are split into two sub-orbitals with slightly different energies. When an electron in the lower energy d sub-orbital absorbs light, it moves up to...
CA
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How and why have socialists been historically divided over the means of achieving their goals?

Disagreement within socialism regarding means can be broadly divided into three disputes. First, the revolutionary strand, in the context of absent or limited suffrage, saw the fundamental restructuring of s...
MC
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Name the 3 types of muscle fibres and explain the role of each.

Type I - Slow Twitch (Slow Oxidative)This muscle fibre consists of a large volume of myoglobin (protein used for storing oxygen in the muscles) and mitochondria. As a result they have a high resistance to fa...
TE
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How do I differentiate between the dative and ablative cases when they have the same ending?

The only way one can tell the case of a word - especially when it has the same ending as another case - is with context. The two best ways to look at the context in this instance would be to look for signal ...
MS
Answered by Maxwell S. • Latin tutor
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What is an action potential, and what steps are involved?

Action potentials are changes of electrical potential in a cell. The normal resting membrane potential inside cells is around -70mV. This membrane potential is maintained through the action of the Na + K + A...
CL
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